Solver (com.google.ortools:ortools-java 9.12.9999 API)

java.lang.Object
- com.google.ortools.constraintsolver.Solver

```
public class Solver
extends java.lang.Object
```
Solver Class

A solver represents the main computation engine. It implements the entire
range of Constraint Programming protocols:
- Reversibility
- Propagation
- Search

Usually, Constraint Programming code consists of
- the creation of the Solver,
- the creation of the decision variables of the model,
- the creation of the constraints of the model and their addition to the
solver() through the AddConstraint() method,
- the creation of the main DecisionBuilder class,
- the launch of the solve() method with the decision builder.

For the time being, Solver is neither MT_SAFE nor MT_HOT.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`Solver.FailException` This exceptions signal that a failure has been raised in the C++ world.
`static class`	`Solver.IntegerCastInfo` Holds semantic information stating that the 'expression' has been cast into 'variable' using the Var() method, and that 'maintainer' is responsible for maintaining the equality between 'variable' and 'expression'.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ASSIGN_CENTER_VALUE` Selects the first possible value which is the closest to the center of the domain of the selected variable.
`static int`	`ASSIGN_MAX_VALUE` Selects the max value of the selected variable.
`static int`	`ASSIGN_MIN_VALUE` Selects the min value of the selected variable.
`static int`	`ASSIGN_RANDOM_VALUE` Selects randomly one of the possible values of the selected variable.
`static int`	`AT_SOLUTION` After successful NextSolution and before EndSearch.
`static int`	`AVOID_DATE` STARTS_AFTER or ENDS_BEFORE, i.e. d is not in t.
`static int`	`CHOICE_POINT`
`static int`	`CHOOSE_DYNAMIC_GLOBAL_BEST` Pairs are compared each time a variable is selected.
`static int`	`CHOOSE_FIRST_UNBOUND` Select the first unbound variable.
`static int`	`CHOOSE_HIGHEST_MAX` Among unbound variables, select the variable with the highest maximal value.
`static int`	`CHOOSE_LOWEST_MIN` Among unbound variables, select the variable with the smallest minimal value.
`static int`	`CHOOSE_MAX_REGRET_ON_MIN` Among unbound variables, select the variable with the largest gap between the first and the second values of the domain.
`static int`	`CHOOSE_MAX_SIZE` Among unbound variables, select the variable with the highest size.
`static int`	`CHOOSE_MIN_SIZE` Among unbound variables, select the variable with the smallest size.
`static int`	`CHOOSE_MIN_SIZE_HIGHEST_MAX` Among unbound variables, select the variable with the smallest size, i.e., the smallest number of possible values.
`static int`	`CHOOSE_MIN_SIZE_HIGHEST_MIN` Among unbound variables, select the variable with the smallest size, i.e., the smallest number of possible values.
`static int`	`CHOOSE_MIN_SIZE_LOWEST_MAX` Among unbound variables, select the variable with the smallest size, i.e., the smallest number of possible values.
`static int`	`CHOOSE_MIN_SIZE_LOWEST_MIN` Among unbound variables, select the variable with the smallest size, i.e., the smallest number of possible values.
`static int`	`CHOOSE_MIN_SLACK_RANK_FORWARD`
`static int`	`CHOOSE_PATH` Selects the next unbound variable on a path, the path being defined by the variables: var[i] corresponds to the index of the next of i.
`static int`	`CHOOSE_RANDOM` Randomly select one of the remaining unbound variables.
`static int`	`CHOOSE_RANDOM_RANK_FORWARD`
`static int`	`CHOOSE_STATIC_GLOBAL_BEST` Pairs are compared at the first call of the selector, and results are cached.
`static int`	`CROSS` Operator which cross exchanges the starting chains of 2 paths, including exchanging the whole paths.
`static int`	`CROSS_DATE` STARTS_BEFORE and ENDS_AFTER at the same time, i.e. d is in t.
`static int`	`DECREMENT` Operator which defines a neighborhood to decrement values.
`static int`	`DELAYED_PRIORITY` DELAYED_PRIORITY is the lowest priority: Demons will be processed after VAR_PRIORITY and NORMAL_PRIORITY demons.
`static int`	`ENDS_AFTER` t ends after d, i.e.
`static int`	`ENDS_AFTER_END` t1 ends after t2 end, i.e.
`static int`	`ENDS_AFTER_START` t1 ends after t2 start, i.e.
`static int`	`ENDS_AT` t ends at d, i.e.
`static int`	`ENDS_AT_END` t1 ends at t2 end, i.e.
`static int`	`ENDS_AT_START` t1 ends at t2 start, i.e.
`static int`	`ENDS_BEFORE` t ends before d, i.e.
`static int`	`EQ` Move is accepted when the current objective value is in the interval objective.Min .. objective.Max.
`static int`	`EXCHANGE` Operator which exchanges the positions of two nodes.
`static int`	`EXTENDEDSWAPACTIVE` Operator which makes an inactive node active and an active one inactive.
`static int`	`FULLPATHLNS` Operator which relaxes one entire path and all inactive nodes, thus defining num_paths neighbors.
`static int`	`GE` Move is accepted when the current objective value >= objective.Min.
`static int`	`IN_ROOT_NODE` Executing the root node.
`static int`	`IN_SEARCH` Executing the search code.
`static int`	`INCREMENT` Operator which defines one neighbor per variable.
`static int`	`INT_VALUE_DEFAULT` The default behavior is ASSIGN_MIN_VALUE.
`static int`	`INT_VALUE_SIMPLE` The simple selection is ASSIGN_MIN_VALUE.
`static int`	`INT_VAR_DEFAULT` The default behavior is CHOOSE_FIRST_UNBOUND.
`static int`	`INT_VAR_SIMPLE` The simple selection is CHOOSE_FIRST_UNBOUND.
`static int`	`INTERVAL_DEFAULT` The default is INTERVAL_SET_TIMES_FORWARD.
`static int`	`INTERVAL_SET_TIMES_BACKWARD` Selects the variable with the highest ending time of all variables, and fixes the ending time to this highest values.
`static int`	`INTERVAL_SET_TIMES_FORWARD` Selects the variable with the lowest starting time of all variables, and fixes its starting time to this lowest value.
`static int`	`INTERVAL_SIMPLE` The simple is INTERVAL_SET_TIMES_FORWARD.
`static int`	`KEEP_LEFT` Right branches are ignored.
`static int`	`KEEP_RIGHT` Left branches are ignored.
`static int`	`KILL_BOTH` Backtracks to the previous decisions, i.e. left and right branches are not applied.
`static int`	`kNumPriorities` Number of priorities for demons.
`static int`	`LE` Move is accepted when the current objective value <= objective.Max.
`static int`	`LK` Lin-Kernighan local search.
`static int`	`MAKEACTIVE` Operator which inserts an inactive node into a path.
`static int`	`MAKECHAININACTIVE` Operator which makes a "chain" of path nodes inactive.
`static int`	`MAKEINACTIVE` Operator which makes path nodes inactive.
`static int`	`MAXIMIZATION`
`static int`	`MINIMIZATION`
`static int`	`NO_CHANGE` Keeps the default behavior, i.e. apply left branch first, and then right branch in case of backtracking.
`static int`	`NO_MORE_SOLUTIONS` After failed NextSolution and before EndSearch.
`static int`	`NORMAL_PRIORITY` NORMAL_PRIORITY is the highest priority: Demons will be processed first.
`static int`	`NOT_SET` Optimization directions.
`static int`	`OROPT` Relocate: OROPT and RELOCATE.
`static int`	`OUTSIDE_SEARCH` Before search, after search.
`static int`	`PATHLNS` Operator which relaxes two sub-chains of three consecutive arcs each.
`static int`	`PROBLEM_INFEASIBLE` After search, the model is infeasible.
`static int`	`RELOCATE` Relocate neighborhood with length of 1 (see OROPT comment).
`static int`	`REVERSIBLE_ACTION`
`static int`	`SENTINEL` This enum is used internally in private methods Solver::PushState and Solver::PopState to tag states in the search tree.
`static int`	`SEQUENCE_DEFAULT` Used for scheduling.
`static int`	`SEQUENCE_SIMPLE`
`static int`	`SIMPLE_MARKER`
`static int`	`SIMPLELNS` Operator which defines one neighbor per variable.
`static int`	`SPLIT_LOWER_HALF` Split the domain in two around the center, and choose the lower part first.
`static int`	`SPLIT_UPPER_HALF` Split the domain in two around the center, and choose the lower part first.
`static int`	`STARTS_AFTER` t starts after d, i.e.
`static int`	`STARTS_AFTER_END` t1 starts after t2 end, i.e.
`static int`	`STARTS_AFTER_START` t1 starts after t2 start, i.e.
`static int`	`STARTS_AT` t starts at d, i.e.
`static int`	`STARTS_AT_END` t1 starts at t2 end, i.e.
`static int`	`STARTS_AT_START` t1 starts at t2 start, i.e.
`static int`	`STARTS_BEFORE` t starts before d, i.e.
`static int`	`STAYS_IN_SYNC` STARTS_AT_START and ENDS_AT_END at the same time.
`static int`	`SWAPACTIVE` Operator which replaces an active node by an inactive one.
`static int`	`SWAPACTIVECHAIN` Operator which replaces a chain of active nodes by an inactive one.
`protected boolean`	`swigCMemOwn`
`static int`	`SWITCH_BRANCHES` Applies right branch first.
`static int`	`TSPLNS` TSP-base LNS.
`static int`	`TSPOPT` Sliding TSP operator.
`static int`	`TWOOPT` Operator which reverses a sub-chain of a path.
`static int`	`UNACTIVELNS` Operator which relaxes all inactive nodes and one sub-chain of six consecutive arcs.
`static int`	`VAR_PRIORITY` VAR_PRIORITY is between DELAYED_PRIORITY and NORMAL_PRIORITY.

Constructor Summary

Constructors
Constructor and Description
`Solver(long cPtr, boolean cMemoryOwn)`
`Solver(java.lang.String name)` Solver API
`Solver(java.lang.String name, ConstraintSolverParameters parameters)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`accept(ModelVisitor visitor)` Accepts the given model visitor.
`long`	`acceptedNeighbors()` The number of accepted neighbors.
`void`	`addCastConstraint(CastConstraint constraint, IntVar target_var, IntExpr expr)` Adds 'constraint' to the solver and marks it as a cast constraint, that is, a constraint created calling Var() on an expression.
`void`	`addConstraint(Constraint c)` Adds the constraint 'c' to the model.
`void`	`addLocalSearchMonitor(LocalSearchMonitor monitor)` Adds the local search monitor to the solver.
`void`	`addPropagationMonitor(PropagationMonitor monitor)` Adds the propagation monitor to the solver.
`Decision`	`balancing_decision()`
`long`	`branches()` The number of branches explored since the creation of the solver.
`ModelCache`	`cache()` Returns the cache of the model.
`IntExpr`	`castExpression(IntVar var)` Internal.
`boolean`	`checkAssignment(Assignment solution)` Checks whether the given assignment satisfies all relevant constraints.
`boolean`	`checkConstraint(Constraint ct)` Checks whether adding this constraint will lead to an immediate failure.
`void`	`checkFail()`
`void`	`clear_fail_intercept()` Internal
`void`	`ClearLocalSearchState()` Clears the local search state.
`void`	`ClearNeighbors()` Manipulate neighbors count; to be used for testing purposes only.
`DecisionBuilder`	`compose(DecisionBuilder[] dbs)`
`DecisionBuilder`	`compose(DecisionBuilder db1, DecisionBuilder db2)` Creates a decision builder which sequentially composes decision builders.
`DecisionBuilder`	`compose(DecisionBuilder db1, DecisionBuilder db2, DecisionBuilder db3)`
`DecisionBuilder`	`compose(DecisionBuilder db1, DecisionBuilder db2, DecisionBuilder db3, DecisionBuilder db4)`
`LocalSearchOperator`	`concatenateOperators(LocalSearchOperator[] ops)` Creates a local search operator which concatenates a vector of operators.
`LocalSearchOperator`	`concatenateOperators(LocalSearchOperator[] ops, boolean restart)`
`LocalSearchOperator`	`concatenateOperators(LocalSearchOperator[] ops, IntIntToLongFunction evaluator)`
`SWIGTYPE_p_operations_research__ConstraintSolverParameters`	`const_parameters()`
`int`	`constraints()` Counts the number of constraints that have been added to the solver before the search.
`java.lang.String`	`context()` Gets the current context of the search.
`boolean`	`currentlyInSolve()` Returns true whether the current search has been created using a Solve() call instead of a NewSearch one.
`static ConstraintSolverParameters`	`defaultSolverParameters()` Create a ConstraintSolverParameters proto with all the default values.
`void`	`delete()`
`long`	`demon_runs(int p)` The number of demons executed during search for a given priority.
`void`	`endSearch()`
`void`	`exportProfilingOverview(java.lang.String filename)` Exports the profiling information in a human readable overview.
`long`	`fail_stamp()` The fail_stamp() is incremented after each backtrack.
`void`	`fail()` Abandon the current branch in the search tree.
`long`	`failures()` The number of failures encountered since the creation of the solver.
`long`	`filteredNeighbors()` The number of filtered neighbors (neighbors accepted by filters).
`protected void`	`finalize()`
`void`	`finishCurrentSearch()` Tells the solver to kill or restart the current search.
`static long`	`getCPtr(Solver obj)`
`long`	`GetGuidedLocalSearchPenalty(long i, long j, long k)`
`LocalSearchMonitor`	`getLocalSearchMonitor()` Returns the local search monitor.
`Assignment`	`GetOrCreateLocalSearchState()` Returns (or creates) an assignment representing the state of local search.
`PropagationMonitor`	`getPropagationMonitor()` Returns the propagation monitor.
`long[]`	`getTmpVector()` Unsafe temporary vector.
`boolean`	`hasName(PropagationBaseObject object)` Returns whether the object has been named or not.
`void`	`IncrementNeighbors()`
`boolean`	`instrumentsDemons()` Returns whether we are instrumenting demons.
`boolean`	`instrumentsVariables()` Returns whether we are tracing variables.
`boolean`	`isLocalSearchProfilingEnabled()` Returns whether we are profiling local search.
`boolean`	`isProfilingEnabled()` Returns whether we are profiling the solver.
`void`	`keepAliveDecisionBuilder(DecisionBuilder db)`
`void`	`keepAliveDecisionBuilder(DecisionBuilder[] dbs)`
`java.lang.String`	`localSearchProfile()` Returns local search profiling information in a human readable format.
`IntExpr`	`makeAbs(IntExpr expr)` \|expr\|
`Constraint`	`makeAbsEquality(IntVar var, IntVar abs_var)` Creates the constraint abs(var) == abs_var.
`LocalSearchFilter`	`MakeAcceptFilter()` Local Search Filters
`Constraint`	`makeAllDifferent(IntVar[] vars)` All variables are pairwise different.
`Constraint`	`makeAllDifferent(IntVar[] vars, boolean stronger_propagation)` All variables are pairwise different.
`Constraint`	`makeAllDifferentExcept(IntVar[] vars, long escape_value)` All variables are pairwise different, unless they are assigned to the escape value.
`Constraint`	`makeAllowedAssignment(IntVar[] vars, IntTupleSet tuples)` This method creates a constraint where the graph of the relation between the variables is given in extension.
`SolutionCollector`	`makeAllSolutionCollector()` Collect all solutions of the search.
`SolutionCollector`	`makeAllSolutionCollector(Assignment assignment)` Collect all solutions of the search.
`Assignment`	`makeAssignment()` This method creates an empty assignment.
`Assignment`	`makeAssignment(Assignment a)` This method creates an assignment which is a copy of 'a'.
`Decision`	`makeAssignVariablesValues(IntVar[] vars, long[] values)`
`Decision`	`MakeAssignVariablesValuesOrDoNothing(IntVar[] vars, long[] values)`
`Decision`	`MakeAssignVariablesValuesOrFail(IntVar[] vars, long[] values)`
`Decision`	`makeAssignVariableValue(IntVar var, long val)` Decisions.
`Decision`	`MakeAssignVariableValueOrDoNothing(IntVar var, long value)`
`Decision`	`makeAssignVariableValueOrFail(IntVar var, long value)`
`SearchMonitor`	`makeAtSolutionCallback(java.lang.Runnable callback)`
`SolutionCollector`	`MakeBestLexicographicValueSolutionCollector(Assignment assignment, SWIGTYPE_p_std__vectorT_bool_t maximize)` Same as above, but supporting lexicographic objectives; 'maximize' specifies the optimization direction for each objective in 'assignment'.
`SolutionCollector`	`MakeBestLexicographicValueSolutionCollector(SWIGTYPE_p_std__vectorT_bool_t maximize)` Same as above, but supporting lexicographic objectives; 'maximize' specifies the optimization direction for each objective.
`SolutionCollector`	`makeBestValueSolutionCollector(Assignment assignment, boolean maximize)` Collect the solution corresponding to the optimal value of the objective of 'assignment'; if 'assignment' does not have an objective no solution is collected.
`SolutionCollector`	`makeBestValueSolutionCollector(boolean maximize)` Collect the solution corresponding to the optimal value of the objective of the internal assignment; if this assignment does not have an objective no solution is collected.
`Constraint`	`makeBetweenCt(IntExpr expr, long l, long u)` (l <= expr <= u)
`IntVar`	`makeBoolVar()` MakeBoolVar will create a variable with a {0, 1} domain.
`IntVar`	`makeBoolVar(java.lang.String name)` MakeBoolVar will create a variable with a {0, 1} domain.
`IntVar[]`	`makeBoolVarArray(int count)`
`IntVar[]`	`makeBoolVarArray(int count, java.lang.String name)`
`RegularLimit`	`makeBranchesLimit(long branches)` Creates a search limit that constrains the number of branches explored in the search tree.
`Constraint`	`makeCircuit(IntVar[] nexts)` Force the "nexts" variable to create a complete Hamiltonian path.
`Demon`	`makeClosureDemon(java.lang.Runnable closure)` Creates a demon from a closure.
`IntExpr`	`makeConditionalExpression(IntVar condition, IntExpr expr, long unperformed_value)` Conditional Expr condition ?
`SearchMonitor`	`makeConstantRestart(int frequency)` This search monitor will restart the search periodically after 'frequency' failures.
`DecisionBuilder`	`makeConstraintAdder(Constraint ct)` Returns a decision builder that will add the given constraint to the model.
`Demon`	`makeConstraintInitialPropagateCallback(Constraint ct)` This method is a specialized case of the MakeConstraintDemon method to call the InitiatePropagate of the constraint 'ct'.
`IntExpr`	`makeConvexPiecewiseExpr(IntExpr expr, long early_cost, long early_date, long late_date, long late_cost)` Convex piecewise function.
`Constraint`	`makeCount(IntVar[] vars, long value, IntVar max_count)` \|{i \| vars[i] == value}\| == max_count
`Constraint`	`makeCount(IntVar[] vars, long value, long max_count)` \|{i \| vars[i] == value}\| == max_count
`Constraint`	`makeCover(IntervalVar[] vars, IntervalVar target_var)` This constraint states that the target_var is the convex hull of the intervals.
`Constraint`	`makeCumulative(IntervalVar[] intervals, int[] demands, IntVar capacity, java.lang.String name)` This constraint enforces that, for any integer t, the sum of the demands corresponding to an interval containing t does not exceed the given capacity.
`Constraint`	`makeCumulative(IntervalVar[] intervals, int[] demands, long capacity, java.lang.String name)` This constraint forces that, for any integer t, the sum of the demands corresponding to an interval containing t does not exceed the given capacity.
`Constraint`	`makeCumulative(IntervalVar[] intervals, IntVar[] demands, IntVar capacity, java.lang.String name)` This constraint enforces that, for any integer t, the sum of demands corresponding to an interval containing t does not exceed the given capacity.
`Constraint`	`makeCumulative(IntervalVar[] intervals, IntVar[] demands, long capacity, java.lang.String name)` This constraint enforces that, for any integer t, the sum of demands corresponding to an interval containing t does not exceed the given capacity.
`Constraint`	`makeCumulative(IntervalVar[] intervals, long[] demands, IntVar capacity, java.lang.String name)` This constraint forces that, for any integer t, the sum of the demands corresponding to an interval containing t does not exceed the given capacity.
`Constraint`	`makeCumulative(IntervalVar[] intervals, long[] demands, long capacity, java.lang.String name)` This constraint forces that, for any integer t, the sum of the demands corresponding to an interval containing t does not exceed the given capacity.
`SearchLimit`	`makeCustomLimit(java.util.function.BooleanSupplier limiter)` Callback-based search limit.
`Decision`	`makeDecision(java.util.function.Consumer<Solver> apply, java.util.function.Consumer<Solver> refute)`
`DecisionBuilder`	`makeDecisionBuilderFromAssignment(Assignment assignment, DecisionBuilder db, IntVar[] vars)` Returns a decision builder for which the left-most leaf corresponds to assignment, the rest of the tree being explored using 'db'.
`DecisionBuilder`	`makeDefaultPhase(IntVar[] vars)`
`DecisionBuilder`	`makeDefaultPhase(IntVar[] vars, DefaultPhaseParameters parameters)`
`RegularLimitParameters`	`makeDefaultRegularLimitParameters()` Creates a regular limit proto containing default values.
`SolutionPool`	`makeDefaultSolutionPool()` Solution Pool.
`Demon`	`makeDelayedConstraintInitialPropagateCallback(Constraint ct)` This method is a specialized case of the MakeConstraintDemon method to call the InitiatePropagate of the constraint 'ct' with low priority.
`Constraint`	`makeDelayedPathCumul(IntVar[] nexts, IntVar[] active, IntVar[] cumuls, IntVar[] transits)` Delayed version of the same constraint: propagation on the nexts variables is delayed until all constraints have propagated.
`Constraint`	`makeDeviation(IntVar[] vars, IntVar deviation_var, long total_sum)` Deviation constraint: sum_i \|n * vars[i] - total_sum\| <= deviation_var and sum_i vars[i] == total_sum n = #vars
`IntExpr`	`makeDifference(IntExpr left, IntExpr right)` left - right
`IntExpr`	`makeDifference(long value, IntExpr expr)` value - expr
`DisjunctiveConstraint`	`makeDisjunctiveConstraint(IntervalVar[] intervals, java.lang.String name)` This constraint forces all interval vars into an non-overlapping sequence.
`Constraint`	`makeDistribute(IntVar[] vars, int[] card_min, int[] card_max)` Aggregated version of count with bounded cardinalities: forall j in 0 .. card_size - 1: card_min[j] <= \|{i \| v[i] == j}\| <= card_max[j]
`Constraint`	`makeDistribute(IntVar[] vars, int[] values, int[] card_min, int[] card_max)` Aggregated version of count with bounded cardinalities: forall j in 0 .. card_size - 1: card_min[j] <= \|{i \| v[i] == values[j]}\| <= card_max[j]
`Constraint`	`makeDistribute(IntVar[] vars, int[] values, IntVar[] cards)` Aggregated version of count: \|{i \| v[i] == values[j]}\| == cards[j]
`Constraint`	`makeDistribute(IntVar[] vars, IntVar[] cards)` Aggregated version of count: \|{i \| v[i] == j}\| == cards[j]
`Constraint`	`makeDistribute(IntVar[] vars, long[] values, IntVar[] cards)` Aggregated version of count: \|{i \| v[i] == values[j]}\| == cards[j]
`Constraint`	`makeDistribute(IntVar[] vars, long[] card_min, long[] card_max)` Aggregated version of count with bounded cardinalities: forall j in 0 .. card_size - 1: card_min[j] <= \|{i \| v[i] == j}\| <= card_max[j]
`Constraint`	`makeDistribute(IntVar[] vars, long[] values, long[] card_min, long[] card_max)` Aggregated version of count with bounded cardinalities: forall j in 0 .. card_size - 1: card_min[j] <= \|{i \| v[i] == values[j]}\| <= card_max[j]
`Constraint`	`makeDistribute(IntVar[] vars, long card_min, long card_max, long card_size)` Aggregated version of count with bounded cardinalities: forall j in 0 .. card_size - 1: card_min <= \|{i \| v[i] == j}\| <= card_max
`IntExpr`	`makeDiv(IntExpr numerator, IntExpr denominator)` numerator / denominator (integer division).
`IntExpr`	`makeDiv(IntExpr expr, long value)` expr / value (integer division)
`IntExpr`	`makeElement(int[] values, IntVar index)` values[index]
`IntExpr`	`makeElement(IntVar[] vars, IntVar index)` vars[expr]
`IntExpr`	`makeElement(long[] values, IntVar index)` values[index]
`IntExpr`	`makeElement(java.util.function.LongBinaryOperator values, IntVar index1, IntVar index2)` 2D version of function-based element expression, values(expr1, expr2).
`IntExpr`	`makeElement(java.util.function.LongUnaryOperator values, IntVar index)` Function-based element.
`Constraint`	`makeElementEquality(int[] vals, IntVar index, IntVar target)`
`Constraint`	`makeElementEquality(IntVar[] vars, IntVar index, IntVar target)`
`Constraint`	`makeElementEquality(IntVar[] vars, IntVar index, long target)`
`Constraint`	`makeElementEquality(long[] vals, IntVar index, IntVar target)`
`SearchMonitor`	`makeEnterSearchCallback(java.lang.Runnable callback)` ----- Callback-based search monitors -----
`Constraint`	`makeEquality(IntervalVar var1, IntervalVar var2)` This constraints states that the two interval variables are equal.
`Constraint`	`makeEquality(IntExpr expr, int value)` expr == value
`Constraint`	`makeEquality(IntExpr left, IntExpr right)` left == right
`Constraint`	`makeEquality(IntExpr expr, long value)` expr == value
`SearchMonitor`	`makeExitSearchCallback(java.lang.Runnable callback)`
`Decision`	`makeFailDecision()`
`RegularLimit`	`makeFailuresLimit(long failures)` Creates a search limit that constrains the number of failures that can happen when exploring the search tree.
`Constraint`	`makeFalseConstraint()` This constraint always fails.
`Constraint`	`makeFalseConstraint(java.lang.String explanation)`
`SolutionCollector`	`makeFirstSolutionCollector()` Collect the first solution of the search.
`SolutionCollector`	`makeFirstSolutionCollector(Assignment assignment)` Collect the first solution of the search.
`IntervalVar`	`makeFixedDurationEndSyncedOnEndIntervalVar(IntervalVar interval_var, long duration, long offset)` Creates an interval var with a fixed duration whose end is synchronized with the end of another interval, with a given offset.
`IntervalVar`	`makeFixedDurationEndSyncedOnStartIntervalVar(IntervalVar interval_var, long duration, long offset)` Creates an interval var with a fixed duration whose end is synchronized with the start of another interval, with a given offset.
`IntervalVar`	`makeFixedDurationIntervalVar(IntVar start_variable, long duration, IntVar performed_variable, java.lang.String name)` Creates an interval var with a fixed duration, and performed_variable.
`IntervalVar`	`makeFixedDurationIntervalVar(IntVar start_variable, long duration, java.lang.String name)` Creates a performed interval var with a fixed duration.
`IntervalVar`	`makeFixedDurationIntervalVar(long start_min, long start_max, long duration, boolean optional, java.lang.String name)` Creates an interval var with a fixed duration.
`IntervalVar[]`	`makeFixedDurationIntervalVarArray(int count, long start_min, long start_max, long duration, boolean optional)`
`IntervalVar[]`	`makeFixedDurationIntervalVarArray(int count, long start_min, long start_max, long duration, boolean optional, java.lang.String name)`
`IntervalVar`	`makeFixedDurationStartSyncedOnEndIntervalVar(IntervalVar interval_var, long duration, long offset)` Creates an interval var with a fixed duration whose start is synchronized with the end of another interval, with a given offset.
`IntervalVar`	`makeFixedDurationStartSyncedOnStartIntervalVar(IntervalVar interval_var, long duration, long offset)` Creates an interval var with a fixed duration whose start is synchronized with the start of another interval, with a given offset.
`IntervalVar`	`makeFixedInterval(long start, long duration, java.lang.String name)` Creates a fixed and performed interval.
`ObjectiveMonitor`	`makeGenericTabuSearch(boolean maximize, IntVar v, long step, IntVar[] tabu_vars, long forbid_tenure)` Creates a Tabu Search based on the vars \|vars\|.
`Constraint`	`makeGreater(IntExpr expr, int value)` expr > value
`Constraint`	`makeGreater(IntExpr left, IntExpr right)` left > right
`Constraint`	`makeGreater(IntExpr expr, long value)` expr > value
`Constraint`	`makeGreaterOrEqual(IntExpr expr, int value)` expr >= value
`Constraint`	`makeGreaterOrEqual(IntExpr left, IntExpr right)` left >= right
`Constraint`	`makeGreaterOrEqual(IntExpr expr, long value)` expr >= value
`Constraint`	`makeIfThenElseCt(IntVar condition, IntExpr then_expr, IntExpr else_expr, IntVar target_var)` Special cases with arrays of size two.
`ImprovementSearchLimit`	`MakeImprovementLimit(IntVar objective_var, boolean maximize, double objective_scaling_factor, double objective_offset, double improvement_rate_coefficient, int improvement_rate_solutions_distance)` Limits the search based on the improvements of 'objective_var'.
`IntExpr`	`makeIndexExpression(IntVar[] vars, long value)` Returns the expression expr such that vars[expr] == value.
`Constraint`	`makeIndexOfConstraint(IntVar[] vars, IntVar index, long target)` This constraint is a special case of the element constraint with an array of integer variables, where the variables are all different and the index variable is constrained such that vars[index] == target.
`Constraint`	`makeIndexOfFirstMaxValueConstraint(IntVar index, IntVar[] vars)` Creates a constraint that binds the index variable to the index of the first variable with the maximum value.
`Constraint`	`makeIndexOfFirstMinValueConstraint(IntVar index, IntVar[] vars)` Creates a constraint that binds the index variable to the index of the first variable with the minimum value.
`IntVar`	`makeIntConst(long val)` IntConst will create a constant expression.
`IntVar`	`makeIntConst(long val, java.lang.String name)` IntConst will create a constant expression.
`IntervalVar`	`makeIntervalRelaxedMax(IntervalVar interval_var)` Creates and returns an interval variable that wraps around the given one, relaxing the max start and end.
`IntervalVar`	`makeIntervalRelaxedMin(IntervalVar interval_var)` Creates and returns an interval variable that wraps around the given one, relaxing the min start and end.
`IntervalVar`	`makeIntervalVar(long start_min, long start_max, long duration_min, long duration_max, long end_min, long end_max, boolean optional, java.lang.String name)` Creates an interval var by specifying the bounds on start, duration, and end.
`Constraint`	`makeIntervalVarRelation(IntervalVar t1, int r, IntervalVar t2)` This method creates a relation between two interval vars.
`Constraint`	`makeIntervalVarRelation(IntervalVar t, int r, long d)` This method creates a relation between an interval var and a date.
`Constraint`	`makeIntervalVarRelationWithDelay(IntervalVar t1, int r, IntervalVar t2, long delay)` This method creates a relation between two interval vars.
`IntVar`	`makeIntVar(int[] values)` MakeIntVar will create a variable with the given sparse domain.
`IntVar`	`makeIntVar(int[] values, java.lang.String name)` MakeIntVar will create a variable with the given sparse domain.
`IntVar`	`makeIntVar(long[] values)` MakeIntVar will create a variable with the given sparse domain.
`IntVar`	`makeIntVar(long[] values, java.lang.String name)` MakeIntVar will create a variable with the given sparse domain.
`IntVar`	`makeIntVar(long min, long max)` MakeIntVar will create the best range based int var for the bounds given.
`IntVar`	`makeIntVar(long min, long max, java.lang.String name)` MakeIntVar will create the best range based int var for the bounds given.
`IntVar[]`	`makeIntVarArray(int count, long min, long max)`
`IntVar[]`	`makeIntVarArray(int count, long min, long max, java.lang.String name)`
`Constraint`	`makeInversePermutationConstraint(IntVar[] left, IntVar[] right)` Creates a constraint that enforces that 'left' and 'right' both represent permutations of [0..left.size()-1], and that 'right' is the inverse permutation of 'left', i.e. for all i in [0..left.size()-1], right[left[i]] = i.
`Constraint`	`makeIsBetweenCt(IntExpr expr, long l, long u, IntVar b)` b == (l <= expr <= u)
`IntVar`	`makeIsBetweenVar(IntExpr v, long l, long u)`
`Constraint`	`makeIsDifferentCstCt(IntExpr v1, IntExpr v2, IntVar b)` b == (v1 !
`Constraint`	`makeIsDifferentCstCt(IntExpr var, long value, IntVar boolvar)` boolvar == (var !
`IntVar`	`makeIsDifferentCstVar(IntExpr v1, IntExpr v2)` status var of (v1 !
`IntVar`	`makeIsDifferentCstVar(IntExpr var, long value)` status var of (var !
`Constraint`	`makeIsEqualCstCt(IntExpr var, long value, IntVar boolvar)` boolvar == (var == value)
`IntVar`	`makeIsEqualCstVar(IntExpr var, long value)` status var of (var == value)
`IntVar`	`makeIsEqualVar(IntExpr v1, IntExpr v2)` status var of (v1 == v2)
`Constraint`	`makeIsEqualVar(IntExpr v1, IntExpr v2, IntVar b)` b == (v1 == v2)
`Constraint`	`makeIsGreaterCstCt(IntExpr v, long c, IntVar b)` b == (v > c)
`IntVar`	`makeIsGreaterCstVar(IntExpr var, long value)` status var of (var > value)
`Constraint`	`makeIsGreaterCt(IntExpr left, IntExpr right, IntVar b)` b == (left > right)
`Constraint`	`makeIsGreaterOrEqualCstCt(IntExpr var, long value, IntVar boolvar)` boolvar == (var >= value)
`IntVar`	`makeIsGreaterOrEqualCstVar(IntExpr var, long value)` status var of (var >= value)
`Constraint`	`makeIsGreaterOrEqualCt(IntExpr left, IntExpr right, IntVar b)` b == (left >= right)
`IntVar`	`makeIsGreaterOrEqualVar(IntExpr left, IntExpr right)` status var of (left >= right)
`IntVar`	`makeIsGreaterVar(IntExpr left, IntExpr right)` status var of (left > right)
`Constraint`	`makeIsLessCstCt(IntExpr v, long c, IntVar b)` b == (v < c)
`IntVar`	`makeIsLessCstVar(IntExpr var, long value)` status var of (var < value)
`Constraint`	`makeIsLessCt(IntExpr left, IntExpr right, IntVar b)` b == (left < right)
`Constraint`	`makeIsLessOrEqualCstCt(IntExpr var, long value, IntVar boolvar)` boolvar == (var <= value)
`IntVar`	`makeIsLessOrEqualCstVar(IntExpr var, long value)` status var of (var <= value)
`Constraint`	`makeIsLessOrEqualCt(IntExpr left, IntExpr right, IntVar b)` b == (left <= right)
`IntVar`	`makeIsLessOrEqualVar(IntExpr left, IntExpr right)` status var of (left <= right)
`IntVar`	`makeIsLessVar(IntExpr left, IntExpr right)` status var of (left < right)
`Constraint`	`MakeIsLexicalLessOrEqualWithOffsetsCt(IntVar[] left, IntVar[] right, long[] offsets, IntVar boolvar)`
`Constraint`	`makeIsMemberCt(IntExpr expr, int[] values, IntVar boolvar)`
`Constraint`	`makeIsMemberCt(IntExpr expr, long[] values, IntVar boolvar)` boolvar == (expr in set)
`IntVar`	`makeIsMemberVar(IntExpr expr, int[] values)`
`IntVar`	`makeIsMemberVar(IntExpr expr, long[] values)`
`SolutionCollector`	`makeLastSolutionCollector()` Collect the last solution of the search.
`SolutionCollector`	`makeLastSolutionCollector(Assignment assignment)` Collect the last solution of the search.
`Constraint`	`makeLess(IntExpr expr, int value)` expr < value
`Constraint`	`makeLess(IntExpr left, IntExpr right)` left < right
`Constraint`	`makeLess(IntExpr expr, long value)` expr < value
`Constraint`	`makeLessOrEqual(IntExpr expr, int value)` expr <= value
`Constraint`	`makeLessOrEqual(IntExpr left, IntExpr right)` left <= right
`Constraint`	`makeLessOrEqual(IntExpr expr, long value)` expr <= value
`Constraint`	`makeLexicalLess(IntVar[] left, IntVar[] right)` Creates a constraint that enforces that left is lexicographically less than right.
`Constraint`	`makeLexicalLessOrEqual(IntVar[] left, IntVar[] right)` Creates a constraint that enforces that left is lexicographically less than or equal to right.
`Constraint`	`MakeLexicalLessOrEqualWithOffsets(IntVar[] left, IntVar[] right, long[] offsets)` Creates a constraint that enforces that left is lexicographically less than or equal to right with an offset.
`ImprovementSearchLimit`	`MakeLexicographicImprovementLimit(IntVar[] objective_vars, SWIGTYPE_p_std__vectorT_bool_t maximize, double[] objective_scaling_factors, double[] objective_offsets, double improvement_rate_coefficient, int improvement_rate_solutions_distance)` Same as MakeImprovementLimit on a lexicographic objective based on 'objective_vars' and related arguments.
`OptimizeVar`	`MakeLexicographicOptimize(SWIGTYPE_p_std__vectorT_bool_t maximize, IntVar[] variables, long[] steps)` Creates a lexicographic objective, following the order of the variables given.
`ObjectiveMonitor`	`MakeLexicographicSimulatedAnnealing(SWIGTYPE_p_std__vectorT_bool_t maximize, IntVar[] vars, long[] steps, long[] initial_temperatures)`
`ObjectiveMonitor`	`MakeLexicographicTabuSearch(SWIGTYPE_p_std__vectorT_bool_t maximize, IntVar[] objectives, long[] steps, IntVar[] vars, long keep_tenure, long forbid_tenure, double tabu_factor)`
`RegularLimit`	`makeLimit(long time, long branches, long failures, long solutions)`
`RegularLimit`	`makeLimit(long time, long branches, long failures, long solutions, boolean smart_time_check)`
`RegularLimit`	`makeLimit(long time, long branches, long failures, long solutions, boolean smart_time_check, boolean cumulative)`
`RegularLimit`	`makeLimit(RegularLimitParameters proto)` Creates a search limit from its protobuf description
`SearchLimit`	`makeLimit(SearchLimit limit_1, SearchLimit limit_2)` Creates a search limit that is reached when either of the underlying limit is reached.
`RegularLimit`	`makeLimit(SWIGTYPE_p_absl__Duration time, long branches, long failures, long solutions)` Limits the search with the 'time', 'branches', 'failures' and 'solutions' limits.
`RegularLimit`	`makeLimit(SWIGTYPE_p_absl__Duration time, long branches, long failures, long solutions, boolean smart_time_check)` Limits the search with the 'time', 'branches', 'failures' and 'solutions' limits.
`RegularLimit`	`makeLimit(SWIGTYPE_p_absl__Duration time, long branches, long failures, long solutions, boolean smart_time_check, boolean cumulative)` Limits the search with the 'time', 'branches', 'failures' and 'solutions' limits.
`DecisionBuilder`	`makeLocalSearchPhase(Assignment assignment, LocalSearchPhaseParameters parameters)` Local Search decision builders factories.
`DecisionBuilder`	`makeLocalSearchPhase(IntVar[] vars, DecisionBuilder first_solution, DecisionBuilder first_solution_sub_decision_builder, LocalSearchPhaseParameters parameters)` Variant with a sub_decison_builder specific to the first solution.
`DecisionBuilder`	`makeLocalSearchPhase(IntVar[] vars, DecisionBuilder first_solution, LocalSearchPhaseParameters parameters)`
`DecisionBuilder`	`makeLocalSearchPhase(SequenceVar[] vars, DecisionBuilder first_solution, LocalSearchPhaseParameters parameters)`
`LocalSearchPhaseParameters`	`makeLocalSearchPhaseParameters(IntVar objective, LocalSearchOperator ls_operator, DecisionBuilder sub_decision_builder)` Local Search Phase Parameters
`LocalSearchPhaseParameters`	`makeLocalSearchPhaseParameters(IntVar objective, LocalSearchOperator ls_operator, DecisionBuilder sub_decision_builder, RegularLimit limit)`
`LocalSearchPhaseParameters`	`makeLocalSearchPhaseParameters(IntVar objective, LocalSearchOperator ls_operator, DecisionBuilder sub_decision_builder, RegularLimit limit, LocalSearchFilterManager filter_manager)`
`LocalSearchPhaseParameters`	`makeLocalSearchPhaseParameters(IntVar objective, SolutionPool pool, LocalSearchOperator ls_operator, DecisionBuilder sub_decision_builder)`
`LocalSearchPhaseParameters`	`makeLocalSearchPhaseParameters(IntVar objective, SolutionPool pool, LocalSearchOperator ls_operator, DecisionBuilder sub_decision_builder, RegularLimit limit)`
`LocalSearchPhaseParameters`	`makeLocalSearchPhaseParameters(IntVar objective, SolutionPool pool, LocalSearchOperator ls_operator, DecisionBuilder sub_decision_builder, RegularLimit limit, LocalSearchFilterManager filter_manager)`
`SearchMonitor`	`makeLubyRestart(int scale_factor)` This search monitor will restart the search periodically.
`Constraint`	`makeMapDomain(IntVar var, IntVar[] actives)` This constraint maps the domain of 'var' onto the array of variables 'actives'.
`IntExpr`	`makeMax(IntExpr expr, int value)` std::max(expr, value)
`IntExpr`	`makeMax(IntExpr left, IntExpr right)` std::max(left, right)
`IntExpr`	`makeMax(IntExpr expr, long value)` std::max(expr, value)
`IntExpr`	`makeMax(IntVar[] vars)` std::max(vars)
`Constraint`	`makeMaxEquality(IntVar[] vars, IntVar max_var)`
`OptimizeVar`	`makeMaximize(IntVar v, long step)` Creates a maximization objective.
`Constraint`	`makeMemberCt(IntExpr expr, int[] values)`
`Constraint`	`makeMemberCt(IntExpr expr, long[] values)` expr in set.
`IntExpr`	`makeMin(IntExpr expr, int value)` std::min(expr, value)
`IntExpr`	`makeMin(IntExpr left, IntExpr right)` std::min (left, right)
`IntExpr`	`makeMin(IntExpr expr, long value)` std::min(expr, value)
`IntExpr`	`makeMin(IntVar[] vars)` std::min(vars)
`Constraint`	`makeMinEquality(IntVar[] vars, IntVar min_var)`
`OptimizeVar`	`makeMinimize(IntVar v, long step)` Creates a minimization objective.
`IntervalVar`	`makeMirrorInterval(IntervalVar interval_var)` Creates an interval var that is the mirror image of the given one, that is, the interval var obtained by reversing the axis.
`IntExpr`	`makeModulo(IntExpr x, IntExpr mod)` Modulo expression x % mod (with the python convention for modulo).
`IntExpr`	`makeModulo(IntExpr x, long mod)` General piecewise-linear function expression, built from f(x) where f is piecewise-linear.
`IntExpr`	`makeMonotonicElement(java.util.function.LongUnaryOperator values, boolean increasing, IntVar index)` Function based element.
`LocalSearchOperator`	`makeMoveTowardTargetOperator(Assignment target)` Creates a local search operator that tries to move the assignment of some variables toward a target.
`LocalSearchOperator`	`makeMoveTowardTargetOperator(IntVar[] variables, long[] target_values)` Creates a local search operator that tries to move the assignment of some variables toward a target.
`SolutionCollector`	`MakeNBestLexicographicValueSolutionCollector(Assignment assignment, int solution_count, SWIGTYPE_p_std__vectorT_bool_t maximize)` Same as above but supporting lexicographic objectives; 'maximize' specifies the optimization direction for each objective.
`SolutionCollector`	`MakeNBestLexicographicValueSolutionCollector(int solution_count, SWIGTYPE_p_std__vectorT_bool_t maximize)`
`SolutionCollector`	`makeNBestValueSolutionCollector(Assignment assignment, int solution_count, boolean maximize)` Same as MakeBestValueSolutionCollector but collects the best solution_count solutions.
`SolutionCollector`	`makeNBestValueSolutionCollector(int solution_count, boolean maximize)`
`LocalSearchOperator`	`makeNeighborhoodLimit(LocalSearchOperator op, long limit)` Creates a local search operator that wraps another local search operator and limits the number of neighbors explored (i.e., calls to MakeNextNeighbor from the current solution (between two calls to Start()).
`DecisionBuilder`	`makeNestedOptimize(DecisionBuilder db, Assignment solution, boolean maximize, long step)` NestedOptimize will collapse a search tree described by a decision builder 'db' and a set of monitors and wrap it into a single point.
`DecisionBuilder`	`makeNestedOptimize(DecisionBuilder db, Assignment solution, boolean maximize, long step, SearchMonitor monitor1)`
`DecisionBuilder`	`makeNestedOptimize(DecisionBuilder db, Assignment solution, boolean maximize, long step, SearchMonitor[] monitors)`
`DecisionBuilder`	`makeNestedOptimize(DecisionBuilder db, Assignment solution, boolean maximize, long step, SearchMonitor monitor1, SearchMonitor monitor2)`
`DecisionBuilder`	`makeNestedOptimize(DecisionBuilder db, Assignment solution, boolean maximize, long step, SearchMonitor monitor1, SearchMonitor monitor2, SearchMonitor monitor3)`
`DecisionBuilder`	`makeNestedOptimize(DecisionBuilder db, Assignment solution, boolean maximize, long step, SearchMonitor monitor1, SearchMonitor monitor2, SearchMonitor monitor3, SearchMonitor monitor4)`
`Constraint`	`makeNoCycle(IntVar[] nexts, IntVar[] active)` Prevent cycles.
`Constraint`	`makeNoCycle(IntVar[] nexts, IntVar[] active, java.util.function.LongPredicate sink_handler)` Prevent cycles.
`Constraint`	`makeNoCycle(IntVar[] nexts, IntVar[] active, java.util.function.LongPredicate sink_handler, boolean assume_paths)`
`Constraint`	`makeNonEquality(IntExpr expr, int value)` expr !
`Constraint`	`makeNonEquality(IntExpr left, IntExpr right)` left !
`Constraint`	`makeNonEquality(IntExpr expr, long value)` expr !
`Constraint`	`makeNonOverlappingBoxesConstraint(IntVar[] x_vars, IntVar[] y_vars, IntVar[] x_size, IntVar[] y_size)` This constraint states that all the boxes must not overlap.
`Constraint`	`makeNonOverlappingBoxesConstraint(IntVar[] x_vars, IntVar[] y_vars, SWIGTYPE_p_absl__SpanT_int_const_t x_size, SWIGTYPE_p_absl__SpanT_int_const_t y_size)`
`Constraint`	`makeNonOverlappingBoxesConstraint(IntVar[] x_vars, IntVar[] y_vars, SWIGTYPE_p_absl__SpanT_long_const_t x_size, SWIGTYPE_p_absl__SpanT_long_const_t y_size)`
`Constraint`	`makeNonOverlappingNonStrictBoxesConstraint(IntVar[] x_vars, IntVar[] y_vars, IntVar[] x_size, IntVar[] y_size)` This constraint states that all the boxes must not overlap.
`Constraint`	`makeNonOverlappingNonStrictBoxesConstraint(IntVar[] x_vars, IntVar[] y_vars, SWIGTYPE_p_absl__SpanT_int_const_t x_size, SWIGTYPE_p_absl__SpanT_int_const_t y_size)`
`Constraint`	`makeNonOverlappingNonStrictBoxesConstraint(IntVar[] x_vars, IntVar[] y_vars, SWIGTYPE_p_absl__SpanT_long_const_t x_size, SWIGTYPE_p_absl__SpanT_long_const_t y_size)`
`Constraint`	`makeNotBetweenCt(IntExpr expr, long l, long u)` (expr < l \|\| expr > u) This constraint is lazy as it will not make holes in the domain of variables.
`Constraint`	`makeNotMemberCt(IntExpr expr, int[] values)`
`Constraint`	`makeNotMemberCt(IntExpr expr, int[] starts, int[] ends)` expr should not be in the list of forbidden intervals [start[i]..end[i]].
`Constraint`	`makeNotMemberCt(IntExpr expr, long[] values)` expr not in set.
`Constraint`	`makeNotMemberCt(IntExpr expr, long[] starts, long[] ends)` expr should not be in the list of forbidden intervals [start[i]..end[i]].
`Constraint`	`makeNullIntersect(IntVar[] first_vars, IntVar[] second_vars)` Creates a constraint that states that all variables in the first vector are different from all variables in the second group.
`Constraint`	`makeNullIntersectExcept(IntVar[] first_vars, IntVar[] second_vars, long escape_value)` Creates a constraint that states that all variables in the first vector are different from all variables from the second group, unless they are assigned to the escape value.
`LocalSearchOperator`	`makeOperator(IntVar[] vars, int op)` Local Search Operators.
`LocalSearchOperator`	`makeOperator(IntVar[] vars, int op, SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors)` Local Search Operators.
`LocalSearchOperator`	`makeOperator(IntVar[] vars, int op, SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors, SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_outgoing_neighbors)` Local Search Operators.
`LocalSearchOperator`	`makeOperator(IntVar[] vars, IntVar[] secondary_vars, int op)`
`LocalSearchOperator`	`makeOperator(IntVar[] vars, IntVar[] secondary_vars, int op, SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors)`
`LocalSearchOperator`	`makeOperator(IntVar[] vars, IntVar[] secondary_vars, int op, SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors, SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_outgoing_neighbors)`
`LocalSearchOperator`	`makeOperator(IntVar[] vars, IntVar[] secondary_vars, LongTernaryOperator evaluator, int op)`
`LocalSearchOperator`	`makeOperator(IntVar[] vars, LongTernaryOperator evaluator, int op)`
`IntExpr`	`makeOpposite(IntExpr expr)` -expr
`OptimizeVar`	`makeOptimize(boolean maximize, IntVar v, long step)` Creates a objective with a given sense (true = maximization).
`Pack`	`makePack(IntVar[] vars, int number_of_bins)` This constraint packs all variables onto 'number_of_bins' variables.
`Constraint`	`makePathConnected(IntVar[] nexts, long[] sources, long[] sinks, IntVar[] status)` Constraint enforcing that status[i] is true iff there's a path defined on next variables from sources[i] to sinks[i].
`Constraint`	`makePathCumul(IntVar[] nexts, IntVar[] active, IntVar[] cumuls, IntVar[] transits)` Creates a constraint which accumulates values along a path such that: cumuls[next[i]] = cumuls[i] + transits[i].
`Constraint`	`makePathCumul(IntVar[] nexts, IntVar[] active, IntVar[] cumuls, IntVar[] slacks, java.util.function.LongBinaryOperator transit_evaluator)` Creates a constraint which accumulates values along a path such that: cumuls[next[i]] = cumuls[i] + transit_evaluator(i, next[i]) + slacks[i].
`Constraint`	`makePathCumul(IntVar[] nexts, IntVar[] active, IntVar[] cumuls, java.util.function.LongBinaryOperator transit_evaluator)` Creates a constraint which accumulates values along a path such that: cumuls[next[i]] = cumuls[i] + transit_evaluator(i, next[i]).
`DecisionBuilder`	`makePhase(IntervalVar[] intervals, int str)` Scheduling phases.
`DecisionBuilder`	`makePhase(IntVar[] vars, int var_str, int val_str)` Phases on IntVar arrays.
`DecisionBuilder`	`makePhase(IntVar[] vars, int var_str, java.util.function.LongBinaryOperator value_evaluator)`
`DecisionBuilder`	`makePhase(IntVar[] vars, int var_str, java.util.function.LongBinaryOperator value_evaluator, java.util.function.LongUnaryOperator tie_breaker)`
`DecisionBuilder`	`makePhase(IntVar[] vars, int var_str, LongTernaryPredicate var_val1_val2_comparator)` var_val1_val2_comparator(var, val1, val2) is true iff assigning value "val1" to variable "var" is better than assigning value "val2".
`DecisionBuilder`	`makePhase(IntVar[] vars, java.util.function.LongBinaryOperator eval, int str)` Returns a decision builder which assigns values to variables which minimize the values returned by the evaluator.
`DecisionBuilder`	`makePhase(IntVar[] vars, java.util.function.LongBinaryOperator eval, java.util.function.LongUnaryOperator tie_breaker, int str)` Returns a decision builder which assigns values to variables which minimize the values returned by the evaluator.
`DecisionBuilder`	`makePhase(IntVar[] vars, java.util.function.LongUnaryOperator var_evaluator, int val_str)`
`DecisionBuilder`	`makePhase(IntVar[] vars, java.util.function.LongUnaryOperator var_evaluator, java.util.function.LongBinaryOperator value_evaluator)`
`DecisionBuilder`	`makePhase(IntVar[] vars, java.util.function.LongUnaryOperator var_evaluator, java.util.function.LongBinaryOperator value_evaluator, java.util.function.LongUnaryOperator tie_breaker)`
`DecisionBuilder`	`makePhase(IntVar v0, int var_str, int val_str)` Shortcuts for small arrays.
`DecisionBuilder`	`makePhase(IntVar v0, IntVar v1, int var_str, int val_str)`
`DecisionBuilder`	`makePhase(IntVar v0, IntVar v1, IntVar v2, int var_str, int val_str)`
`DecisionBuilder`	`makePhase(IntVar v0, IntVar v1, IntVar v2, IntVar v3, int var_str, int val_str)`
`DecisionBuilder`	`makePhase(SequenceVar[] sequences, int str)`
`IntExpr`	`makePower(IntExpr expr, long n)` expr ^ n (n > 0)
`ModelVisitor`	`makePrintModelVisitor()` Prints the model.
`IntExpr`	`makeProd(IntExpr left, IntExpr right)` left * right
`IntExpr`	`makeProd(IntExpr expr, long value)` expr * value
`DecisionBuilder`	`MakeProfiledDecisionBuilderWrapper(DecisionBuilder db)` Activates profiling on a decision builder.
`LocalSearchOperator`	`makeRandomLnsOperator(IntVar[] vars, int number_of_variables)` Creates a large neighborhood search operator which creates fragments (set of relaxed variables) with up to number_of_variables random variables (sampling with replacement is performed meaning that at most number_of_variables variables are selected).
`LocalSearchOperator`	`makeRandomLnsOperator(IntVar[] vars, int number_of_variables, int seed)`
`Decision`	`makeRankFirstInterval(SequenceVar sequence, int index)` Returns a decision that tries to rank first the ith interval var in the sequence variable.
`Decision`	`makeRankLastInterval(SequenceVar sequence, int index)` Returns a decision that tries to rank last the ith interval var in the sequence variable.
`LocalSearchFilter`	`MakeRejectFilter()`
`DecisionBuilder`	`makeRestoreAssignment(Assignment assignment)` Returns a DecisionBuilder which restores an Assignment (calls void Assignment::Restore())
`BaseObjectiveMonitor`	`MakeRoundRobinCompoundObjectiveMonitor(SWIGTYPE_p_std__vectorT_operations_research__BaseObjectiveMonitor_p_t monitors, int num_max_local_optima_before_metaheuristic_switch)` Creates a Guided Local Search monitor.
`IntExpr`	`makeScalProd(IntVar[] vars, int[] coefs)` scalar product
`IntExpr`	`makeScalProd(IntVar[] vars, long[] coefs)` scalar product
`Constraint`	`makeScalProdEquality(IntVar[] vars, int[] coefficients, IntVar target)`
`Constraint`	`makeScalProdEquality(IntVar[] vars, int[] coefficients, long cst)`
`Constraint`	`makeScalProdEquality(IntVar[] vars, long[] coefficients, IntVar target)`
`Constraint`	`makeScalProdEquality(IntVar[] vars, long[] coefficients, long cst)`
`Constraint`	`makeScalProdGreaterOrEqual(IntVar[] vars, int[] coeffs, long cst)`
`Constraint`	`makeScalProdGreaterOrEqual(IntVar[] vars, long[] coeffs, long cst)`
`Constraint`	`makeScalProdLessOrEqual(IntVar[] vars, int[] coefficients, long cst)`
`Constraint`	`makeScalProdLessOrEqual(IntVar[] vars, long[] coefficients, long cst)`
`Decision`	`makeScheduleOrExpedite(IntervalVar var, long est, SWIGTYPE_p_long marker)` Returns a decision that tries to schedule a task at a given time.
`Decision`	`makeScheduleOrPostpone(IntervalVar var, long est, SWIGTYPE_p_long marker)` Returns a decision that tries to schedule a task at a given time.
`SearchMonitor`	`makeSearchLog(int branch_period)` The SearchMonitors below will display a periodic search log on LOG(INFO) every branch_period branches explored.
`SearchMonitor`	`makeSearchLog(int branch_period, IntVar var)` At each solution, this monitor also display the var value.
`SearchMonitor`	`makeSearchLog(int branch_period, IntVar[] vars, java.util.function.Supplier<java.lang.String> display_callback)` At each solution, this monitor will display the 'vars' values and the result of `display_callback`.
`SearchMonitor`	`makeSearchLog(int branch_period, IntVar var, java.util.function.Supplier<java.lang.String> display_callback)` At each solution, this monitor will display the 'var' value and the result of `display_callback`.
`SearchMonitor`	`makeSearchLog(int branch_period, OptimizeVar opt_var)` OptimizeVar Search Logs At each solution, this monitor will also display the 'opt_var' value.
`SearchMonitor`	`makeSearchLog(int branch_period, OptimizeVar opt_var, java.util.function.Supplier<java.lang.String> display_callback)` Creates a search monitor that will also print the result of the display callback.
`SearchMonitor`	`makeSearchLog(int branch_period, java.util.function.Supplier<java.lang.String> display_callback)` At each solution, this monitor will also display result of `display_callback`.
`SearchMonitor`	`makeSearchTrace(java.lang.String prefix)` Creates a search monitor that will trace precisely the behavior of the search.
`IntExpr`	`makeSemiContinuousExpr(IntExpr expr, long fixed_charge, long step)` Semi continuous Expression (x <= 0 -> f(x) = 0; x > 0 -> f(x) = ax + b) a >= 0 and b >= 0
`ObjectiveMonitor`	`makeSimulatedAnnealing(boolean maximize, IntVar v, long step, long initial_temperature)` Creates a Simulated Annealing monitor.
`RegularLimit`	`makeSolutionsLimit(long solutions)` Creates a search limit that constrains the number of solutions found during the search.
`DecisionBuilder`	`makeSolveOnce(DecisionBuilder db)` SolveOnce will collapse a search tree described by a decision builder 'db' and a set of monitors and wrap it into a single point.
`DecisionBuilder`	`makeSolveOnce(DecisionBuilder db, SearchMonitor monitor1)`
`DecisionBuilder`	`makeSolveOnce(DecisionBuilder db, SearchMonitor[] monitors)`
`DecisionBuilder`	`makeSolveOnce(DecisionBuilder db, SearchMonitor monitor1, SearchMonitor monitor2)`
`DecisionBuilder`	`makeSolveOnce(DecisionBuilder db, SearchMonitor monitor1, SearchMonitor monitor2, SearchMonitor monitor3)`
`DecisionBuilder`	`makeSolveOnce(DecisionBuilder db, SearchMonitor monitor1, SearchMonitor monitor2, SearchMonitor monitor3, SearchMonitor monitor4)`
`Constraint`	`makeSortingConstraint(IntVar[] vars, IntVar[] sorted)` Creates a constraint binding the arrays of variables "vars" and "sorted_vars": sorted_vars[0] must be equal to the minimum of all variables in vars, and so on: the value of sorted_vars[i] must be equal to the i-th value of variables invars.
`Decision`	`makeSplitVariableDomain(IntVar var, long val, boolean start_with_lower_half)`
`IntExpr`	`makeSquare(IntExpr expr)` expr * expr
`ModelVisitor`	`makeStatisticsModelVisitor()` Displays some nice statistics on the model.
`DecisionBuilder`	`makeStoreAssignment(Assignment assignment)` Returns a DecisionBuilder which stores an Assignment (calls void Assignment::Store())
`DisjunctiveConstraint`	`makeStrictDisjunctiveConstraint(IntervalVar[] intervals, java.lang.String name)` This constraint forces all interval vars into an non-overlapping sequence.
`Constraint`	`makeSubCircuit(IntVar[] nexts)` Force the "nexts" variable to create a complete Hamiltonian path for those that do not loop upon themselves.
`IntExpr`	`makeSum(IntExpr left, IntExpr right)` left + right.
`IntExpr`	`makeSum(IntExpr expr, long value)` expr + value.
`IntExpr`	`makeSum(IntVar[] vars)` sum of all vars.
`Constraint`	`makeSumEquality(IntVar[] vars, IntVar var)`
`Constraint`	`makeSumEquality(IntVar[] vars, long cst)`
`Constraint`	`makeSumGreaterOrEqual(IntVar[] vars, long cst)`
`Constraint`	`makeSumLessOrEqual(IntVar[] vars, long cst)` Variation on arrays.
`IntVarLocalSearchFilter`	`makeSumObjectiveFilter(IntVar[] vars, IntVar[] secondary_vars, LongTernaryOperator values, int filter_enum)`
`IntVarLocalSearchFilter`	`makeSumObjectiveFilter(IntVar[] vars, java.util.function.LongBinaryOperator values, int filter_enum)`
`SearchMonitor`	`makeSymmetryManager(SymmetryBreaker v1)`
`SearchMonitor`	`makeSymmetryManager(SymmetryBreaker[] visitors)` Symmetry Breaking.
`SearchMonitor`	`makeSymmetryManager(SymmetryBreaker v1, SymmetryBreaker v2)`
`SearchMonitor`	`makeSymmetryManager(SymmetryBreaker v1, SymmetryBreaker v2, SymmetryBreaker v3)`
`SearchMonitor`	`makeSymmetryManager(SymmetryBreaker v1, SymmetryBreaker v2, SymmetryBreaker v3, SymmetryBreaker v4)`
`ObjectiveMonitor`	`makeTabuSearch(boolean maximize, IntVar objective, long step, IntVar[] vars, long keep_tenure, long forbid_tenure, double tabu_factor)` MetaHeuristics which try to get the search out of local optima.
`Constraint`	`makeTemporalDisjunction(IntervalVar t1, IntervalVar t2)` This constraint implements a temporal disjunction between two interval vars.
`Constraint`	`makeTemporalDisjunction(IntervalVar t1, IntervalVar t2, IntVar alt)` This constraint implements a temporal disjunction between two interval vars t1 and t2.
`RegularLimit`	`makeTimeLimit(long time_in_ms)`
`RegularLimit`	`makeTimeLimit(SWIGTYPE_p_absl__Duration time)` Creates a search limit that constrains the running time.
`Constraint`	`makeTransitionConstraint(IntVar[] vars, IntTupleSet transition_table, long initial_state, int[] final_states)` This constraint create a finite automaton that will check the sequence of variables vars.
`Constraint`	`makeTransitionConstraint(IntVar[] vars, IntTupleSet transition_table, long initial_state, long[] final_states)` This constraint create a finite automaton that will check the sequence of variables vars.
`Constraint`	`makeTrueConstraint()` This constraint always succeeds.
`LocalSearchFilter`	`makeVariableDomainFilter()`
`Decision`	`makeVariableGreaterOrEqualValue(IntVar var, long value)`
`Decision`	`makeVariableLessOrEqualValue(IntVar var, long value)`
`OptimizeVar`	`makeWeightedMaximize(IntVar[] sub_objectives, int[] weights, long step)` Creates a maximization weigthed objective.
`OptimizeVar`	`makeWeightedMaximize(IntVar[] sub_objectives, long[] weights, long step)` Creates a maximization weigthed objective.
`OptimizeVar`	`makeWeightedMinimize(IntVar[] sub_objectives, int[] weights, long step)` Creates a minimization weighted objective.
`OptimizeVar`	`makeWeightedMinimize(IntVar[] sub_objectives, long[] weights, long step)` Creates a minimization weighted objective.
`OptimizeVar`	`makeWeightedOptimize(boolean maximize, IntVar[] sub_objectives, int[] weights, long step)` Creates a weighted objective with a given sense (true = maximization).
`OptimizeVar`	`makeWeightedOptimize(boolean maximize, IntVar[] sub_objectives, long[] weights, long step)` Creates a weighted objective with a given sense (true = maximization).
`static long`	`memoryUsage()` Current memory usage in bytes
`java.lang.String`	`model_name()` Returns the name of the model.
`LocalSearchOperator`	`MultiArmedBanditConcatenateOperators(LocalSearchOperator[] ops, double memory_coefficient, double exploration_coefficient, boolean maximize)` Creates a local search operator which concatenates a vector of operators.
`boolean`	`nameAllVariables()` Returns whether all variables should be named.
`long`	`neighbors()` The number of neighbors created.
`void`	`newSearch(DecisionBuilder db)`
`void`	`newSearch(DecisionBuilder db, SearchMonitor m1)`
`void`	`newSearch(DecisionBuilder db, SearchMonitor[] monitors)` Decomposed search.
`void`	`newSearch(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2)`
`void`	`newSearch(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2, SearchMonitor m3)`
`void`	`newSearch(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2, SearchMonitor m3, SearchMonitor m4)`
`boolean`	`nextSolution()`
`int`	`optimization_direction()` The direction of optimization, getter and setter.
`ConstraintSolverParameters`	`parameters()` Stored Parameters.
`void`	`popState()`
`void`	`pushState()` The PushState and PopState methods manipulates the states of the reversible objects.
`int`	`rand32(int size)` Returns a random value between 0 and 'size' - 1;
`long`	`rand64(long size)` Returns a random value between 0 and 'size' - 1;
`LocalSearchOperator`	`randomConcatenateOperators(LocalSearchOperator[] ops)` Randomized version of local search concatenator; calls a random operator at each call to MakeNextNeighbor().
`LocalSearchOperator`	`randomConcatenateOperators(LocalSearchOperator[] ops, int seed)` Randomized version of local search concatenator; calls a random operator at each call to MakeNextNeighbor().
`Demon`	`registerDemon(Demon demon)` Adds a new demon and wraps it inside a DemonProfiler if necessary.
`IntervalVar`	`registerIntervalVar(IntervalVar var)` Registers a new IntervalVar and wraps it inside a TraceIntervalVar if necessary.
`IntExpr`	`registerIntExpr(IntExpr expr)` Registers a new IntExpr and wraps it inside a TraceIntExpr if necessary.
`IntVar`	`registerIntVar(IntVar var)` Registers a new IntVar and wraps it inside a TraceIntVar if necessary.
`void`	`reSeed(int seed)` Reseed the solver random generator.
`void`	`restartCurrentSearch()`
`void`	`restartSearch()`
`Assignment`	`RunUncheckedLocalSearch(Assignment initial_solution, LocalSearchFilterManager filter_manager, LocalSearchOperator ls_operator, SearchMonitor[] monitors, RegularLimit limit)` Experimental: runs a local search on the given initial solution, checking the feasibility and the objective value of solutions using the filter manager only (solutions are never restored in the CP world).
`Assignment`	`RunUncheckedLocalSearch(Assignment initial_solution, LocalSearchFilterManager filter_manager, LocalSearchOperator ls_operator, SearchMonitor[] monitors, RegularLimit limit, SWIGTYPE_p_absl__flat_hash_setT_operations_research__IntVar_p_t touched)` Experimental: runs a local search on the given initial solution, checking the feasibility and the objective value of solutions using the filter manager only (solutions are never restored in the CP world).
`int`	`searchDepth()` Gets the search depth of the current active search.
`int`	`searchLeftDepth()` Gets the search left depth of the current active search.
`void`	`set_context(java.lang.String context)` Sets the current context of the search.
`void`	`set_optimization_direction(int direction)`
`void`	`SetGuidedLocalSearchPenaltyCallback(LongTernaryOperator penalty_callback)`
`void`	`setTmpVector(long[] value)` Unsafe temporary vector.
`void`	`SetUseFastLocalSearch(boolean use_fast_local_search)` enabled for metaheuristics.
`void`	`shouldFail()` These methods are only useful for the SWIG wrappers, which need a way to externally cause the Solver to fail.
`long`	`solutions()` The number of solutions found since the start of the search.
`boolean`	`solve(DecisionBuilder db)`
`boolean`	`solve(DecisionBuilder db, SearchMonitor m1)`
`boolean`	`solve(DecisionBuilder db, SearchMonitor[] monitors)` Solves the problem using the given DecisionBuilder and returns true if a solution was found and accepted.
`boolean`	`solve(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2)`
`boolean`	`solve(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2, SearchMonitor m3)`
`boolean`	`solve(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2, SearchMonitor m3, SearchMonitor m4)`
`boolean`	`solveAndCommit(DecisionBuilder db)`
`boolean`	`solveAndCommit(DecisionBuilder db, SearchMonitor m1)`
`boolean`	`solveAndCommit(DecisionBuilder db, SearchMonitor[] monitors)` SolveAndCommit using a decision builder and up to three search monitors, usually one for the objective, one for the limits and one to collect solutions.
`boolean`	`solveAndCommit(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2)`
`boolean`	`solveAndCommit(DecisionBuilder db, SearchMonitor m1, SearchMonitor m2, SearchMonitor m3)`
`int`	`solveDepth()` Gets the number of nested searches.
`long`	`stamp()` The stamp indicates how many moves in the search tree we have performed.
`int`	`state()` State of the solver.
`static long`	`swigRelease(Solver obj)`
`void`	`topPeriodicCheck()` Performs PeriodicCheck on the top-level search; for instance, can be called from a nested solve to check top-level limits.
`int`	`topProgressPercent()` Returns a percentage representing the propress of the search before reaching the limits of the top-level search (can be called from a nested solve).
`java.lang.String`	`toString()` misc debug string.
`DecisionBuilder`	`tryDecisions(DecisionBuilder[] dbs)`
`DecisionBuilder`	`tryDecisions(DecisionBuilder db1, DecisionBuilder db2)` Creates a decision builder which will create a search tree where each decision builder is called from the top of the search tree.
`DecisionBuilder`	`tryDecisions(DecisionBuilder db1, DecisionBuilder db2, DecisionBuilder db3)`
`DecisionBuilder`	`tryDecisions(DecisionBuilder db1, DecisionBuilder db2, DecisionBuilder db3, DecisionBuilder db4)`
`long`	`unchecked_solutions()` The number of unchecked solutions found by local search.
`boolean`	`UseFastLocalSearch()` Returns true if fast local search is enabled.
`long`	`wallTime()` DEPRECATED: Use Now() instead.

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail
- swigCMemOwn
```
protected transient boolean swigCMemOwn
```
- kNumPriorities
```
public static final int kNumPriorities
```
  Number of priorities for demons.
- INT_VAR_DEFAULT
```
public static final int INT_VAR_DEFAULT
```
  The default behavior is CHOOSE_FIRST_UNBOUND.
- INT_VAR_SIMPLE
```
public static final int INT_VAR_SIMPLE
```
  The simple selection is CHOOSE_FIRST_UNBOUND.
- CHOOSE_FIRST_UNBOUND
```
public static final int CHOOSE_FIRST_UNBOUND
```
  Select the first unbound variable.
  Variables are considered in the order of the vector of IntVars used
  to create the selector.
- CHOOSE_RANDOM
```
public static final int CHOOSE_RANDOM
```
  Randomly select one of the remaining unbound variables.
- CHOOSE_MIN_SIZE_LOWEST_MIN
```
public static final int CHOOSE_MIN_SIZE_LOWEST_MIN
```
  Among unbound variables, select the variable with the smallest size,
  i.e., the smallest number of possible values.
  In case of a tie, the selected variables is the one with the lowest min
  value.
  In case of a tie, the first one is selected, first being defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_MIN_SIZE_HIGHEST_MIN
```
public static final int CHOOSE_MIN_SIZE_HIGHEST_MIN
```
  Among unbound variables, select the variable with the smallest size,
  i.e., the smallest number of possible values.
  In case of a tie, the selected variable is the one with the highest min
  value.
  In case of a tie, the first one is selected, first being defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_MIN_SIZE_LOWEST_MAX
```
public static final int CHOOSE_MIN_SIZE_LOWEST_MAX
```
  Among unbound variables, select the variable with the smallest size,
  i.e., the smallest number of possible values.
  In case of a tie, the selected variables is the one with the lowest max
  value.
  In case of a tie, the first one is selected, first being defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_MIN_SIZE_HIGHEST_MAX
```
public static final int CHOOSE_MIN_SIZE_HIGHEST_MAX
```
  Among unbound variables, select the variable with the smallest size,
  i.e., the smallest number of possible values.
  In case of a tie, the selected variable is the one with the highest max
  value.
  In case of a tie, the first one is selected, first being defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_LOWEST_MIN
```
public static final int CHOOSE_LOWEST_MIN
```
  Among unbound variables, select the variable with the smallest minimal
  value.
  In case of a tie, the first one is selected, "first" defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_HIGHEST_MAX
```
public static final int CHOOSE_HIGHEST_MAX
```
  Among unbound variables, select the variable with the highest maximal
  value.
  In case of a tie, the first one is selected, first being defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_MIN_SIZE
```
public static final int CHOOSE_MIN_SIZE
```
  Among unbound variables, select the variable with the smallest size.
  In case of a tie, the first one is selected, first being defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_MAX_SIZE
```
public static final int CHOOSE_MAX_SIZE
```
  Among unbound variables, select the variable with the highest size.
  In case of a tie, the first one is selected, first being defined by the
  order in the vector of IntVars used to create the selector.
- CHOOSE_MAX_REGRET_ON_MIN
```
public static final int CHOOSE_MAX_REGRET_ON_MIN
```
  Among unbound variables, select the variable with the largest
  gap between the first and the second values of the domain.
- CHOOSE_PATH
```
public static final int CHOOSE_PATH
```
  Selects the next unbound variable on a path, the path being defined by
  the variables: var[i] corresponds to the index of the next of i.
- INT_VALUE_DEFAULT
```
public static final int INT_VALUE_DEFAULT
```
  The default behavior is ASSIGN_MIN_VALUE.
- INT_VALUE_SIMPLE
```
public static final int INT_VALUE_SIMPLE
```
  The simple selection is ASSIGN_MIN_VALUE.
- ASSIGN_MIN_VALUE
```
public static final int ASSIGN_MIN_VALUE
```
  Selects the min value of the selected variable.
- ASSIGN_MAX_VALUE
```
public static final int ASSIGN_MAX_VALUE
```
  Selects the max value of the selected variable.
- ASSIGN_RANDOM_VALUE
```
public static final int ASSIGN_RANDOM_VALUE
```
  Selects randomly one of the possible values of the selected variable.
- ASSIGN_CENTER_VALUE
```
public static final int ASSIGN_CENTER_VALUE
```
  Selects the first possible value which is the closest to the center
  of the domain of the selected variable.
  The center is defined as (min + max) / 2.
- SPLIT_LOWER_HALF
```
public static final int SPLIT_LOWER_HALF
```
  Split the domain in two around the center, and choose the lower
  part first.
- SPLIT_UPPER_HALF
```
public static final int SPLIT_UPPER_HALF
```
  Split the domain in two around the center, and choose the lower
  part first.
- CHOOSE_STATIC_GLOBAL_BEST
```
public static final int CHOOSE_STATIC_GLOBAL_BEST
```
  Pairs are compared at the first call of the selector, and results are
  cached. Next calls to the selector use the previous computation, and so
  are not up-to-date, e.g. some <variable, value> pairs may not be
  possible anymore due to propagation since the first to call.
- CHOOSE_DYNAMIC_GLOBAL_BEST
```
public static final int CHOOSE_DYNAMIC_GLOBAL_BEST
```
  Pairs are compared each time a variable is selected. That way all pairs
  are relevant and evaluation is accurate.
  This strategy runs in O(number-of-pairs) at each variable selection,
  versus O(1) in the static version.
- SEQUENCE_DEFAULT
```
public static final int SEQUENCE_DEFAULT
```
  Used for scheduling. Not yet implemented.
- SEQUENCE_SIMPLE
```
public static final int SEQUENCE_SIMPLE
```
- CHOOSE_MIN_SLACK_RANK_FORWARD
```
public static final int CHOOSE_MIN_SLACK_RANK_FORWARD
```
- CHOOSE_RANDOM_RANK_FORWARD
```
public static final int CHOOSE_RANDOM_RANK_FORWARD
```
- INTERVAL_DEFAULT
```
public static final int INTERVAL_DEFAULT
```
  The default is INTERVAL_SET_TIMES_FORWARD.
- INTERVAL_SIMPLE
```
public static final int INTERVAL_SIMPLE
```
  The simple is INTERVAL_SET_TIMES_FORWARD.
- INTERVAL_SET_TIMES_FORWARD
```
public static final int INTERVAL_SET_TIMES_FORWARD
```
  Selects the variable with the lowest starting time of all variables,
  and fixes its starting time to this lowest value.
- INTERVAL_SET_TIMES_BACKWARD
```
public static final int INTERVAL_SET_TIMES_BACKWARD
```
  Selects the variable with the highest ending time of all variables,
  and fixes the ending time to this highest values.
- TWOOPT
```
public static final int TWOOPT
```
  Operator which reverses a sub-chain of a path. It is called TwoOpt
  because it breaks two arcs on the path; resulting paths are called
  two-optimal.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
  (where (1, 5) are first and last nodes of the path and can therefore not
  be moved):
  1 -> [3 -> 2] -> 4 -> 5
  1 -> [4 -> 3 -> 2] -> 5
  1 -> 2 -> [4 -> 3] -> 5
- OROPT
```
public static final int OROPT
```
  Relocate: OROPT and RELOCATE.
  Operator which moves a sub-chain of a path to another position; the
  specified chain length is the fixed length of the chains being moved.
  When this length is 1, the operator simply moves a node to another
  position.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5, for a chain
  length of 2 (where (1, 5) are first and last nodes of the path and can
  therefore not be moved):
  1 -> 4 -> [2 -> 3] -> 5
  1 -> [3 -> 4] -> 2 -> 5
  
  Using Relocate with chain lengths of 1, 2 and 3 together is equivalent
  to the OrOpt operator on a path. The OrOpt operator is a limited
  version of 3Opt (breaks 3 arcs on a path).
- RELOCATE
```
public static final int RELOCATE
```
  Relocate neighborhood with length of 1 (see OROPT comment).
- EXCHANGE
```
public static final int EXCHANGE
```
  Operator which exchanges the positions of two nodes.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
  (where (1, 5) are first and last nodes of the path and can therefore not
  be moved):
  1 -> [3] -> [2] -> 4 -> 5
  1 -> [4] -> 3 -> [2] -> 5
  1 -> 2 -> [4] -> [3] -> 5
- CROSS
```
public static final int CROSS
```
  Operator which cross exchanges the starting chains of 2 paths, including
  exchanging the whole paths.
  First and last nodes are not moved.
  Possible neighbors for the paths 1 -> 2 -> 3 -> 4 -> 5 and 6 -> 7 -> 8
  (where (1, 5) and (6, 8) are first and last nodes of the paths and can
  therefore not be moved):
  1 -> [7] -> 3 -> 4 -> 5 6 -> [2] -> 8
  1 -> [7] -> 4 -> 5 6 -> [2 -> 3] -> 8
  1 -> [7] -> 5 6 -> [2 -> 3 -> 4] -> 8
- MAKEACTIVE
```
public static final int MAKEACTIVE
```
  Operator which inserts an inactive node into a path.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
  (where 1 and 4 are first and last nodes of the path) are:
  1 -> [5] -> 2 -> 3 -> 4
  1 -> 2 -> [5] -> 3 -> 4
  1 -> 2 -> 3 -> [5] -> 4
- MAKEINACTIVE
```
public static final int MAKEINACTIVE
```
  Operator which makes path nodes inactive.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 (where 1 and 4 are
  first and last nodes of the path) are:
  1 -> 3 -> 4 with 2 inactive
  1 -> 2 -> 4 with 3 inactive
- MAKECHAININACTIVE
```
public static final int MAKECHAININACTIVE
```
  Operator which makes a "chain" of path nodes inactive.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 (where 1 and 4 are
  first and last nodes of the path) are:
  1 -> 3 -> 4 with 2 inactive
  1 -> 2 -> 4 with 3 inactive
  1 -> 4 with 2 and 3 inactive
- SWAPACTIVE
```
public static final int SWAPACTIVE
```
  Operator which replaces an active node by an inactive one.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
  (where 1 and 4 are first and last nodes of the path) are:
  1 -> [5] -> 3 -> 4 with 2 inactive
  1 -> 2 -> [5] -> 4 with 3 inactive
- SWAPACTIVECHAIN
```
public static final int SWAPACTIVECHAIN
```
  Operator which replaces a chain of active nodes by an inactive one.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
  (where 1 and 4 are first and last nodes of the path) are:
  1 -> [5] -> 3 -> 4 with 2 inactive
  1 -> 2 -> [5] -> 4 with 3 inactive
  1 -> [5] -> 4 with 2 and 3 inactive
- EXTENDEDSWAPACTIVE
```
public static final int EXTENDEDSWAPACTIVE
```
  Operator which makes an inactive node active and an active one inactive.
  It is similar to SwapActiveOperator except that it tries to insert the
  inactive node in all possible positions instead of just the position of
  the node made inactive.
  Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
  (where 1 and 4 are first and last nodes of the path) are:
  1 -> [5] -> 3 -> 4 with 2 inactive
  1 -> 3 -> [5] -> 4 with 2 inactive
  1 -> [5] -> 2 -> 4 with 3 inactive
  1 -> 2 -> [5] -> 4 with 3 inactive
- PATHLNS
```
public static final int PATHLNS
```
  Operator which relaxes two sub-chains of three consecutive arcs each.
  Each sub-chain is defined by a start node and the next three arcs. Those
  six arcs are relaxed to build a new neighbor.
  PATHLNS explores all possible pairs of starting nodes and so defines
  n^2 neighbors, n being the number of nodes.
  Note that the two sub-chains can be part of the same path; they even may
  overlap.
- FULLPATHLNS
```
public static final int FULLPATHLNS
```
  Operator which relaxes one entire path and all inactive nodes, thus
  defining num_paths neighbors.
- UNACTIVELNS
```
public static final int UNACTIVELNS
```
  Operator which relaxes all inactive nodes and one sub-chain of six
  consecutive arcs. That way the path can be improved by inserting
  inactive nodes or swapping arcs.
- INCREMENT
```
public static final int INCREMENT
```
  Operator which defines one neighbor per variable. Each neighbor tries to
  increment by one the value of the corresponding variable. When a new
  solution is found the neighborhood is rebuilt from scratch, i.e., tries
  to increment values in the variable order.
  Consider for instance variables x and y. x is incremented one by one to
  its max, and when it is not possible to increment x anymore, y is
  incremented once. If this is a solution, then next neighbor tries to
  increment x.
- DECREMENT
```
public static final int DECREMENT
```
  Operator which defines a neighborhood to decrement values.
  The behavior is the same as INCREMENT, except values are decremented
  instead of incremented.
- SIMPLELNS
```
public static final int SIMPLELNS
```
  Operator which defines one neighbor per variable. Each neighbor relaxes
  one variable.
  When a new solution is found the neighborhood is rebuilt from scratch.
  Consider for instance variables x and y. First x is relaxed and the
  solver is looking for the best possible solution (with only x relaxed).
  Then y is relaxed, and the solver is looking for a new solution.
  If a new solution is found, then the next variable to be relaxed is x.
- LK
```
public static final int LK
```
  Lin-Kernighan local search.
  While the accumulated local gain is positive, perform a 2opt or a 3opt
  move followed by a series of 2opt moves. Return a neighbor for which the
  global gain is positive.
- TSPOPT
```
public static final int TSPOPT
```
  Sliding TSP operator.
  Uses an exact dynamic programming algorithm to solve the TSP
  corresponding to path sub-chains.
  For a subchain 1 -> 2 -> 3 -> 4 -> 5 -> 6, solves the TSP on
  nodes A, 2, 3, 4, 5, where A is a merger of nodes 1 and 6 such that
  cost(A,i) = cost(1,i) and cost(i,A) = cost(i,6).
- TSPLNS
```
public static final int TSPLNS
```
  TSP-base LNS.
  Randomly merge consecutive nodes until n "meta"-nodes remain and solve
  the corresponding TSP.
  This is an "unlimited" neighborhood which must be stopped by search
  limits. To force diversification, the operator iteratively forces each
  node to serve as base of a meta-node.
- GE
```
public static final int GE
```
  Move is accepted when the current objective value >= objective.Min.
- LE
```
public static final int LE
```
  Move is accepted when the current objective value <= objective.Max.
- EQ
```
public static final int EQ
```
  Move is accepted when the current objective value is in the interval
  objective.Min .. objective.Max.
- DELAYED_PRIORITY
```
public static final int DELAYED_PRIORITY
```
  DELAYED_PRIORITY is the lowest priority: Demons will be processed after
  VAR_PRIORITY and NORMAL_PRIORITY demons.
- VAR_PRIORITY
```
public static final int VAR_PRIORITY
```
  VAR_PRIORITY is between DELAYED_PRIORITY and NORMAL_PRIORITY.
- NORMAL_PRIORITY
```
public static final int NORMAL_PRIORITY
```
  NORMAL_PRIORITY is the highest priority: Demons will be processed first.
- ENDS_AFTER_END
```
public static final int ENDS_AFTER_END
```
  t1 ends after t2 end, i.e. End(t1) >= End(t2) + delay.
- ENDS_AFTER_START
```
public static final int ENDS_AFTER_START
```
  t1 ends after t2 start, i.e. End(t1) >= Start(t2) + delay.
- ENDS_AT_END
```
public static final int ENDS_AT_END
```
  t1 ends at t2 end, i.e. End(t1) == End(t2) + delay.
- ENDS_AT_START
```
public static final int ENDS_AT_START
```
  t1 ends at t2 start, i.e. End(t1) == Start(t2) + delay.
- STARTS_AFTER_END
```
public static final int STARTS_AFTER_END
```
  t1 starts after t2 end, i.e. Start(t1) >= End(t2) + delay.
- STARTS_AFTER_START
```
public static final int STARTS_AFTER_START
```
  t1 starts after t2 start, i.e. Start(t1) >= Start(t2) + delay.
- STARTS_AT_END
```
public static final int STARTS_AT_END
```
  t1 starts at t2 end, i.e. Start(t1) == End(t2) + delay.
- STARTS_AT_START
```
public static final int STARTS_AT_START
```
  t1 starts at t2 start, i.e. Start(t1) == Start(t2) + delay.
- STAYS_IN_SYNC
```
public static final int STAYS_IN_SYNC
```
  STARTS_AT_START and ENDS_AT_END at the same time.
  t1 starts at t2 start, i.e. Start(t1) == Start(t2) + delay.
  t1 ends at t2 end, i.e. End(t1) == End(t2).
- ENDS_AFTER
```
public static final int ENDS_AFTER
```
  t ends after d, i.e. End(t) >= d.
- ENDS_AT
```
public static final int ENDS_AT
```
  t ends at d, i.e. End(t) == d.
- ENDS_BEFORE
```
public static final int ENDS_BEFORE
```
  t ends before d, i.e. End(t) <= d.
- STARTS_AFTER
```
public static final int STARTS_AFTER
```
  t starts after d, i.e. Start(t) >= d.
- STARTS_AT
```
public static final int STARTS_AT
```
  t starts at d, i.e. Start(t) == d.
- STARTS_BEFORE
```
public static final int STARTS_BEFORE
```
  t starts before d, i.e. Start(t) <= d.
- CROSS_DATE
```
public static final int CROSS_DATE
```
  STARTS_BEFORE and ENDS_AFTER at the same time, i.e. d is in t.
  t starts before d, i.e. Start(t) <= d.
  t ends after d, i.e. End(t) >= d.
- AVOID_DATE
```
public static final int AVOID_DATE
```
  STARTS_AFTER or ENDS_BEFORE, i.e. d is not in t.
  t starts after d, i.e. Start(t) >= d.
  t ends before d, i.e. End(t) <= d.
- NO_CHANGE
```
public static final int NO_CHANGE
```
  Keeps the default behavior, i.e. apply left branch first, and then right
  branch in case of backtracking.
- KEEP_LEFT
```
public static final int KEEP_LEFT
```
  Right branches are ignored. This is used to make the code faster when
  backtrack makes no sense or is not useful.
  This is faster as there is no need to create one new node per decision.
- KEEP_RIGHT
```
public static final int KEEP_RIGHT
```
  Left branches are ignored. This is used to make the code faster when
  backtrack makes no sense or is not useful.
  This is faster as there is no need to create one new node per decision.
- KILL_BOTH
```
public static final int KILL_BOTH
```
  Backtracks to the previous decisions, i.e. left and right branches are
  not applied.
- SWITCH_BRANCHES
```
public static final int SWITCH_BRANCHES
```
  Applies right branch first. Left branch will be applied in case of
  backtracking.
- SENTINEL
```
public static final int SENTINEL
```
  This enum is used internally in private methods Solver::PushState and
  Solver::PopState to tag states in the search tree.
- SIMPLE_MARKER
```
public static final int SIMPLE_MARKER
```
- CHOICE_POINT
```
public static final int CHOICE_POINT
```
- REVERSIBLE_ACTION
```
public static final int REVERSIBLE_ACTION
```
- OUTSIDE_SEARCH
```
public static final int OUTSIDE_SEARCH
```
  Before search, after search.
- IN_ROOT_NODE
```
public static final int IN_ROOT_NODE
```
  Executing the root node.
- IN_SEARCH
```
public static final int IN_SEARCH
```
  Executing the search code.
- AT_SOLUTION
```
public static final int AT_SOLUTION
```
  After successful NextSolution and before EndSearch.
- NO_MORE_SOLUTIONS
```
public static final int NO_MORE_SOLUTIONS
```
  After failed NextSolution and before EndSearch.
- PROBLEM_INFEASIBLE
```
public static final int PROBLEM_INFEASIBLE
```
  After search, the model is infeasible.
- NOT_SET
```
public static final int NOT_SET
```
  Optimization directions.
- MAXIMIZATION
```
public static final int MAXIMIZATION
```
- MINIMIZATION
```
public static final int MINIMIZATION
```

Constructor Detail

Solver

public Solver(long cPtr,
              boolean cMemoryOwn)

Solver
```
public Solver(java.lang.String name)
```
Solver API

Solver

public Solver(java.lang.String name,
              ConstraintSolverParameters parameters)

Method Detail

getCPtr

public static long getCPtr(Solver obj)

swigRelease

public static long swigRelease(Solver obj)

finalize
```
protected void finalize()
```
Overrides:

finalize in class java.lang.Object

delete
```
public void delete()
```

makeIntVarArray

public IntVar[] makeIntVarArray(int count,
                                long min,
                                long max)

makeIntVarArray

public IntVar[] makeIntVarArray(int count,
                                long min,
                                long max,
                                java.lang.String name)

makeBoolVarArray

public IntVar[] makeBoolVarArray(int count)

makeBoolVarArray

public IntVar[] makeBoolVarArray(int count,
                                 java.lang.String name)

makeFixedDurationIntervalVarArray

public IntervalVar[] makeFixedDurationIntervalVarArray(int count,
                                                       long start_min,
                                                       long start_max,
                                                       long duration,
                                                       boolean optional)

makeFixedDurationIntervalVarArray

public IntervalVar[] makeFixedDurationIntervalVarArray(int count,
                                                       long start_min,
                                                       long start_max,
                                                       long duration,
                                                       boolean optional,
                                                       java.lang.String name)

keepAliveDecisionBuilder

public void keepAliveDecisionBuilder(DecisionBuilder db)

keepAliveDecisionBuilder

public void keepAliveDecisionBuilder(DecisionBuilder[] dbs)

parameters

public ConstraintSolverParameters parameters()

Stored Parameters.

const_parameters

public SWIGTYPE_p_operations_research__ConstraintSolverParameters const_parameters()

defaultSolverParameters
```
public static ConstraintSolverParameters defaultSolverParameters()
```
Create a ConstraintSolverParameters proto with all the default values.

addConstraint
```
public void addConstraint(Constraint c)
```
Adds the constraint 'c' to the model.

After calling this method, and until there is a backtrack that undoes the
addition, any assignment of variables to values must satisfy the given
constraint in order to be considered feasible. There are two fairly
different use cases:

- the most common use case is modeling: the given constraint is really
part of the problem that the user is trying to solve. In this use case,
AddConstraint is called outside of search (i.e., with state() == OUTSIDE_SEARCH). Most users should only use AddConstraint in this
way. In this case, the constraint will belong to the model forever: it
cannot be removed by backtracking.

- a rarer use case is that 'c' is not a real constraint of the model. It
may be a constraint generated by a branching decision (a constraint whose
goal is to restrict the search space), a symmetry breaking constraint (a
constraint that does restrict the search space, but in a way that cannot
have an impact on the quality of the solutions in the subtree), or an
inferred constraint that, while having no semantic value to the model (it
does not restrict the set of solutions), is worth having because we
believe it may strengthen the propagation. In these cases, it happens
that the constraint is added during the search (i.e., with state() ==
IN_SEARCH or state() == IN_ROOT_NODE). When a constraint is
added during a search, it applies only to the subtree of the search tree
rooted at the current node, and will be automatically removed by
backtracking.

This method does not take ownership of the constraint. If the constraint
has been created by any factory method (Solver::MakeXXX), it will
automatically be deleted. However, power users who implement their own
constraints should do: solver.AddConstraint(solver.RevAlloc(new
MyConstraint(...));

addCastConstraint

public void addCastConstraint(CastConstraint constraint,
                              IntVar target_var,
                              IntExpr expr)

Adds 'constraint' to the solver and marks it as a cast constraint, that
is, a constraint created calling Var() on an expression. This is used
internally.

solve
```
public boolean solve(DecisionBuilder db,
                     SearchMonitor[] monitors)
```
Solves the problem using the given DecisionBuilder and returns true if a
solution was found and accepted.

These methods are the ones most users should use to search for a solution.
Note that the definition of 'solution' is subtle. A solution here is
defined as a leaf of the search tree with respect to the given decision
builder for which there is no failure. What this means is that, contrary
to intuition, a solution may not have all variables of the model bound.
It is the responsibility of the decision builder to keep returning
decisions until all variables are indeed bound. The most extreme
counterexample is calling Solve with a trivial decision builder whose
Next() method always returns nullptr. In this case, Solve immediately
returns 'true', since not assigning any variable to any value is a
solution, unless the root node propagation discovers that the model is
infeasible.

This function must be called either from outside of search,
or from within the Next() method of a decision builder.

Solve will terminate whenever any of the following event arise:
A search monitor asks the solver to terminate the search by calling
solver()->FinishCurrentSearch().
A solution is found that is accepted by all search monitors, and none of
the search monitors decides to search for another one.

Upon search termination, there will be a series of backtracks all the way
to the top level. This means that a user cannot expect to inspect the
solution by querying variables after a call to Solve(): all the
information will be lost. In order to do something with the solution, the
user must either:

Use a search monitor that can process such a leaf. See, in particular,
the SolutionCollector class.
Do not use Solve. Instead, use the more fine-grained approach using
methods NewSearch(...), NextSolution(), and EndSearch().

Parameters:

db - The decision builder that will generate the search tree.

monitors - A vector of search monitors that will be notified of
various events during the search. In their reaction to these events, such
monitors may influence the search.

solve

public boolean solve(DecisionBuilder db)

solve

public boolean solve(DecisionBuilder db,
                     SearchMonitor m1)

solve

public boolean solve(DecisionBuilder db,
                     SearchMonitor m1,
                     SearchMonitor m2)

solve

public boolean solve(DecisionBuilder db,
                     SearchMonitor m1,
                     SearchMonitor m2,
                     SearchMonitor m3)

solve

public boolean solve(DecisionBuilder db,
                     SearchMonitor m1,
                     SearchMonitor m2,
                     SearchMonitor m3,
                     SearchMonitor m4)

newSearch
```
public void newSearch(DecisionBuilder db,
                      SearchMonitor[] monitors)
```
Decomposed search.
The code for a top level search should look like
solver->NewSearch(db);
while (solver->NextSolution()) {
.. use the current solution
}
solver()->EndSearch();

newSearch

public void newSearch(DecisionBuilder db)

newSearch

public void newSearch(DecisionBuilder db,
                      SearchMonitor m1)

newSearch

public void newSearch(DecisionBuilder db,
                      SearchMonitor m1,
                      SearchMonitor m2)

newSearch

public void newSearch(DecisionBuilder db,
                      SearchMonitor m1,
                      SearchMonitor m2,
                      SearchMonitor m3)

newSearch

public void newSearch(DecisionBuilder db,
                      SearchMonitor m1,
                      SearchMonitor m2,
                      SearchMonitor m3,
                      SearchMonitor m4)

nextSolution
```
public boolean nextSolution()
```

restartSearch
```
public void restartSearch()
```

endSearch
```
public void endSearch()
```

solveAndCommit
```
public boolean solveAndCommit(DecisionBuilder db,
                              SearchMonitor[] monitors)
```
SolveAndCommit using a decision builder and up to three
search monitors, usually one for the objective, one for the limits
and one to collect solutions.

The difference between a SolveAndCommit() and a Solve() method
call is the fact that SolveAndCommit will not backtrack all
modifications at the end of the search. This method is only
usable during the Next() method of a decision builder.

solveAndCommit

public boolean solveAndCommit(DecisionBuilder db)

solveAndCommit

public boolean solveAndCommit(DecisionBuilder db,
                              SearchMonitor m1)

solveAndCommit

public boolean solveAndCommit(DecisionBuilder db,
                              SearchMonitor m1,
                              SearchMonitor m2)

solveAndCommit

public boolean solveAndCommit(DecisionBuilder db,
                              SearchMonitor m1,
                              SearchMonitor m2,
                              SearchMonitor m3)

checkAssignment
```
public boolean checkAssignment(Assignment solution)
```
Checks whether the given assignment satisfies all relevant constraints.

checkConstraint
```
public boolean checkConstraint(Constraint ct)
```
Checks whether adding this constraint will lead to an immediate
failure. It will return false if the model is already inconsistent, or if
adding the constraint makes it inconsistent.

state
```
public int state()
```
State of the solver.

fail
```
public void fail()
```
Abandon the current branch in the search tree. A backtrack will follow.

toString
```
public java.lang.String toString()
```
misc debug string.

Overrides:

toString in class java.lang.Object

memoryUsage
```
public static long memoryUsage()
```
Current memory usage in bytes

wallTime
```
public long wallTime()
```
DEPRECATED: Use Now() instead.
Time elapsed, in ms since the creation of the solver.

branches
```
public long branches()
```
The number of branches explored since the creation of the solver.

solutions
```
public long solutions()
```
The number of solutions found since the start of the search.

unchecked_solutions
```
public long unchecked_solutions()
```
The number of unchecked solutions found by local search.

demon_runs
```
public long demon_runs(int p)
```
The number of demons executed during search for a given priority.

failures
```
public long failures()
```
The number of failures encountered since the creation of the solver.

neighbors
```
public long neighbors()
```
The number of neighbors created.

ClearNeighbors
```
public void ClearNeighbors()
```
Manipulate neighbors count; to be used for testing purposes only.
TODO(user): Find a workaround to avoid exposing this.

IncrementNeighbors
```
public void IncrementNeighbors()
```

filteredNeighbors
```
public long filteredNeighbors()
```
The number of filtered neighbors (neighbors accepted by filters).

acceptedNeighbors
```
public long acceptedNeighbors()
```
The number of accepted neighbors.

stamp
```
public long stamp()
```
The stamp indicates how many moves in the search tree we have performed.
It is useful to detect if we need to update same lazy structures.

fail_stamp
```
public long fail_stamp()
```
The fail_stamp() is incremented after each backtrack.

set_context

public void set_context(java.lang.String context)

Sets the current context of the search.

context
```
public java.lang.String context()
```
Gets the current context of the search.

optimization_direction
```
public int optimization_direction()
```
The direction of optimization, getter and setter.

set_optimization_direction

public void set_optimization_direction(int direction)

SetGuidedLocalSearchPenaltyCallback

public void SetGuidedLocalSearchPenaltyCallback(LongTernaryOperator penalty_callback)

GetGuidedLocalSearchPenalty

public long GetGuidedLocalSearchPenalty(long i,
                                        long j,
                                        long k)

makeIntVar

public IntVar makeIntVar(long min,
                         long max,
                         java.lang.String name)

MakeIntVar will create the best range based int var for the bounds given.

makeIntVar

public IntVar makeIntVar(long[] values,
                         java.lang.String name)

MakeIntVar will create a variable with the given sparse domain.

makeIntVar

public IntVar makeIntVar(int[] values,
                         java.lang.String name)

MakeIntVar will create a variable with the given sparse domain.

makeIntVar
```
public IntVar makeIntVar(long min,
                         long max)
```
MakeIntVar will create the best range based int var for the bounds given.

makeIntVar
```
public IntVar makeIntVar(long[] values)
```
MakeIntVar will create a variable with the given sparse domain.

makeIntVar
```
public IntVar makeIntVar(int[] values)
```
MakeIntVar will create a variable with the given sparse domain.

makeBoolVar
```
public IntVar makeBoolVar(java.lang.String name)
```
MakeBoolVar will create a variable with a {0, 1} domain.

makeBoolVar
```
public IntVar makeBoolVar()
```
MakeBoolVar will create a variable with a {0, 1} domain.

makeIntConst

public IntVar makeIntConst(long val,
                           java.lang.String name)

IntConst will create a constant expression.

makeIntConst
```
public IntVar makeIntConst(long val)
```
IntConst will create a constant expression.

makeSum

public IntExpr makeSum(IntExpr left,
                       IntExpr right)

left + right.

makeSum

public IntExpr makeSum(IntExpr expr,
                       long value)

expr + value.

makeSum

public IntExpr makeSum(IntVar[] vars)

sum of all vars.

makeScalProd

public IntExpr makeScalProd(IntVar[] vars,
                            long[] coefs)

scalar product

makeScalProd

public IntExpr makeScalProd(IntVar[] vars,
                            int[] coefs)

scalar product

makeDifference

public IntExpr makeDifference(IntExpr left,
                              IntExpr right)

left - right

makeDifference

public IntExpr makeDifference(long value,
                              IntExpr expr)

value - expr

makeOpposite

public IntExpr makeOpposite(IntExpr expr)

-expr

makeProd

public IntExpr makeProd(IntExpr left,
                        IntExpr right)

left * right

makeProd

public IntExpr makeProd(IntExpr expr,
                        long value)

expr * value

makeDiv

public IntExpr makeDiv(IntExpr expr,
                       long value)

expr / value (integer division)

makeDiv

public IntExpr makeDiv(IntExpr numerator,
                       IntExpr denominator)

numerator / denominator (integer division). Terms need to be positive.

makeAbs
```
public IntExpr makeAbs(IntExpr expr)
```
|expr|

makeSquare

public IntExpr makeSquare(IntExpr expr)

expr * expr

makePower

public IntExpr makePower(IntExpr expr,
                         long n)

expr ^ n (n > 0)

makeElement

public IntExpr makeElement(long[] values,
                           IntVar index)

values[index]

makeElement

public IntExpr makeElement(int[] values,
                           IntVar index)

values[index]

makeElement
```
public IntExpr makeElement(java.util.function.LongUnaryOperator values,
                           IntVar index)
```
Function-based element. The constraint takes ownership of the
callback. The callback must be able to cope with any possible
value in the domain of 'index' (potentially negative ones too).

makeMonotonicElement
```
public IntExpr makeMonotonicElement(java.util.function.LongUnaryOperator values,
                                    boolean increasing,
                                    IntVar index)
```
Function based element. The constraint takes ownership of the
callback. The callback must be monotonic. It must be able to
cope with any possible value in the domain of 'index'
(potentially negative ones too). Furtermore, monotonicity is not
checked. Thus giving a non-monotonic function, or specifying an
incorrect increasing parameter will result in undefined behavior.

makeElement

public IntExpr makeElement(java.util.function.LongBinaryOperator values,
                           IntVar index1,
                           IntVar index2)

2D version of function-based element expression, values(expr1, expr2).

makeElement

public IntExpr makeElement(IntVar[] vars,
                           IntVar index)

vars[expr]

makeIndexExpression
```
public IntExpr makeIndexExpression(IntVar[] vars,
                                   long value)
```
Returns the expression expr such that vars[expr] == value.
It assumes that vars are all different.

makeIfThenElseCt

public Constraint makeIfThenElseCt(IntVar condition,
                                   IntExpr then_expr,
                                   IntExpr else_expr,
                                   IntVar target_var)

Special cases with arrays of size two.

makeMin

public IntExpr makeMin(IntVar[] vars)

std::min(vars)

makeMin

public IntExpr makeMin(IntExpr left,
                       IntExpr right)

std::min (left, right)

makeMin

public IntExpr makeMin(IntExpr expr,
                       long value)

std::min(expr, value)

makeMin

public IntExpr makeMin(IntExpr expr,
                       int value)

std::min(expr, value)

makeMax

public IntExpr makeMax(IntVar[] vars)

std::max(vars)

makeMax

public IntExpr makeMax(IntExpr left,
                       IntExpr right)

std::max(left, right)

makeMax

public IntExpr makeMax(IntExpr expr,
                       long value)

std::max(expr, value)

makeMax

public IntExpr makeMax(IntExpr expr,
                       int value)

std::max(expr, value)

makeConvexPiecewiseExpr

public IntExpr makeConvexPiecewiseExpr(IntExpr expr,
                                       long early_cost,
                                       long early_date,
                                       long late_date,
                                       long late_cost)

Convex piecewise function.

makeSemiContinuousExpr

public IntExpr makeSemiContinuousExpr(IntExpr expr,
                                      long fixed_charge,
                                      long step)

Semi continuous Expression (x <= 0 -> f(x) = 0; x > 0 -> f(x) = ax + b)
a >= 0 and b >= 0

makeModulo
```
public IntExpr makeModulo(IntExpr x,
                          long mod)
```
General piecewise-linear function expression, built from f(x) where f is
piecewise-linear. The resulting expression is f(expr).
expressions.
Modulo expression x % mod (with the python convention for modulo).

makeModulo

public IntExpr makeModulo(IntExpr x,
                          IntExpr mod)

Modulo expression x % mod (with the python convention for modulo).

makeConditionalExpression

public IntExpr makeConditionalExpression(IntVar condition,
                                         IntExpr expr,
                                         long unperformed_value)

Conditional Expr condition ? expr : unperformed_value

makeTrueConstraint
```
public Constraint makeTrueConstraint()
```
This constraint always succeeds.

makeFalseConstraint
```
public Constraint makeFalseConstraint()
```
This constraint always fails.

makeFalseConstraint

public Constraint makeFalseConstraint(java.lang.String explanation)

makeIsEqualCstCt

public Constraint makeIsEqualCstCt(IntExpr var,
                                   long value,
                                   IntVar boolvar)

boolvar == (var == value)

makeIsEqualCstVar

public IntVar makeIsEqualCstVar(IntExpr var,
                                long value)

status var of (var == value)

makeIsEqualVar

public Constraint makeIsEqualVar(IntExpr v1,
                                 IntExpr v2,
                                 IntVar b)

b == (v1 == v2)

makeIsEqualVar

public IntVar makeIsEqualVar(IntExpr v1,
                             IntExpr v2)

status var of (v1 == v2)

makeEquality

public Constraint makeEquality(IntExpr left,
                               IntExpr right)

left == right

makeEquality

public Constraint makeEquality(IntExpr expr,
                               long value)

expr == value

makeEquality

public Constraint makeEquality(IntExpr expr,
                               int value)

expr == value

makeIsDifferentCstCt

public Constraint makeIsDifferentCstCt(IntExpr var,
                                       long value,
                                       IntVar boolvar)

boolvar == (var != value)

makeIsDifferentCstVar

public IntVar makeIsDifferentCstVar(IntExpr var,
                                    long value)

status var of (var != value)

makeIsDifferentCstVar

public IntVar makeIsDifferentCstVar(IntExpr v1,
                                    IntExpr v2)

status var of (v1 != v2)

makeIsDifferentCstCt

public Constraint makeIsDifferentCstCt(IntExpr v1,
                                       IntExpr v2,
                                       IntVar b)

b == (v1 != v2)

makeNonEquality

public Constraint makeNonEquality(IntExpr left,
                                  IntExpr right)

left != right

makeNonEquality

public Constraint makeNonEquality(IntExpr expr,
                                  long value)

expr != value

makeNonEquality

public Constraint makeNonEquality(IntExpr expr,
                                  int value)

expr != value

makeIsLessOrEqualCstCt

public Constraint makeIsLessOrEqualCstCt(IntExpr var,
                                         long value,
                                         IntVar boolvar)

boolvar == (var <= value)

makeIsLessOrEqualCstVar

public IntVar makeIsLessOrEqualCstVar(IntExpr var,
                                      long value)

status var of (var <= value)

makeIsLessOrEqualVar

public IntVar makeIsLessOrEqualVar(IntExpr left,
                                   IntExpr right)

status var of (left <= right)

makeIsLessOrEqualCt

public Constraint makeIsLessOrEqualCt(IntExpr left,
                                      IntExpr right,
                                      IntVar b)

b == (left <= right)

makeLessOrEqual

public Constraint makeLessOrEqual(IntExpr left,
                                  IntExpr right)

left <= right

makeLessOrEqual

public Constraint makeLessOrEqual(IntExpr expr,
                                  long value)

expr <= value

makeLessOrEqual

public Constraint makeLessOrEqual(IntExpr expr,
                                  int value)

expr <= value

makeIsGreaterOrEqualCstCt

public Constraint makeIsGreaterOrEqualCstCt(IntExpr var,
                                            long value,
                                            IntVar boolvar)

boolvar == (var >= value)

makeIsGreaterOrEqualCstVar

public IntVar makeIsGreaterOrEqualCstVar(IntExpr var,
                                         long value)

status var of (var >= value)

makeIsGreaterOrEqualVar

public IntVar makeIsGreaterOrEqualVar(IntExpr left,
                                      IntExpr right)

status var of (left >= right)

makeIsGreaterOrEqualCt

public Constraint makeIsGreaterOrEqualCt(IntExpr left,
                                         IntExpr right,
                                         IntVar b)

b == (left >= right)

makeGreaterOrEqual

public Constraint makeGreaterOrEqual(IntExpr left,
                                     IntExpr right)

left >= right

makeGreaterOrEqual

public Constraint makeGreaterOrEqual(IntExpr expr,
                                     long value)

expr >= value

makeGreaterOrEqual

public Constraint makeGreaterOrEqual(IntExpr expr,
                                     int value)

expr >= value

makeIsGreaterCstCt

public Constraint makeIsGreaterCstCt(IntExpr v,
                                     long c,
                                     IntVar b)

b == (v > c)

makeIsGreaterCstVar

public IntVar makeIsGreaterCstVar(IntExpr var,
                                  long value)

status var of (var > value)

makeIsGreaterVar

public IntVar makeIsGreaterVar(IntExpr left,
                               IntExpr right)

status var of (left > right)

makeIsGreaterCt

public Constraint makeIsGreaterCt(IntExpr left,
                                  IntExpr right,
                                  IntVar b)

b == (left > right)

makeGreater

public Constraint makeGreater(IntExpr left,
                              IntExpr right)

left > right

makeGreater

public Constraint makeGreater(IntExpr expr,
                              long value)

expr > value

makeGreater

public Constraint makeGreater(IntExpr expr,
                              int value)

expr > value

makeIsLessCstCt

public Constraint makeIsLessCstCt(IntExpr v,
                                  long c,
                                  IntVar b)

b == (v < c)

makeIsLessCstVar

public IntVar makeIsLessCstVar(IntExpr var,
                               long value)

status var of (var < value)

makeIsLessVar

public IntVar makeIsLessVar(IntExpr left,
                            IntExpr right)

status var of (left < right)

makeIsLessCt

public Constraint makeIsLessCt(IntExpr left,
                               IntExpr right,
                               IntVar b)

b == (left < right)

makeLess

public Constraint makeLess(IntExpr left,
                           IntExpr right)

left < right

makeLess

public Constraint makeLess(IntExpr expr,
                           long value)

expr < value

makeLess

public Constraint makeLess(IntExpr expr,
                           int value)

expr < value

makeSumLessOrEqual

public Constraint makeSumLessOrEqual(IntVar[] vars,
                                     long cst)

Variation on arrays.

makeSumGreaterOrEqual

public Constraint makeSumGreaterOrEqual(IntVar[] vars,
                                        long cst)

makeSumEquality

public Constraint makeSumEquality(IntVar[] vars,
                                  long cst)

makeSumEquality

public Constraint makeSumEquality(IntVar[] vars,
                                  IntVar var)

makeScalProdEquality

public Constraint makeScalProdEquality(IntVar[] vars,
                                       long[] coefficients,
                                       long cst)

makeScalProdEquality

public Constraint makeScalProdEquality(IntVar[] vars,
                                       int[] coefficients,
                                       long cst)

makeScalProdEquality

public Constraint makeScalProdEquality(IntVar[] vars,
                                       long[] coefficients,
                                       IntVar target)

makeScalProdEquality

public Constraint makeScalProdEquality(IntVar[] vars,
                                       int[] coefficients,
                                       IntVar target)

makeScalProdGreaterOrEqual

public Constraint makeScalProdGreaterOrEqual(IntVar[] vars,
                                             long[] coeffs,
                                             long cst)

makeScalProdGreaterOrEqual

public Constraint makeScalProdGreaterOrEqual(IntVar[] vars,
                                             int[] coeffs,
                                             long cst)

makeScalProdLessOrEqual

public Constraint makeScalProdLessOrEqual(IntVar[] vars,
                                          long[] coefficients,
                                          long cst)

makeScalProdLessOrEqual

public Constraint makeScalProdLessOrEqual(IntVar[] vars,
                                          int[] coefficients,
                                          long cst)

makeMinEquality

public Constraint makeMinEquality(IntVar[] vars,
                                  IntVar min_var)

makeMaxEquality

public Constraint makeMaxEquality(IntVar[] vars,
                                  IntVar max_var)

makeElementEquality

public Constraint makeElementEquality(long[] vals,
                                      IntVar index,
                                      IntVar target)

makeElementEquality

public Constraint makeElementEquality(int[] vals,
                                      IntVar index,
                                      IntVar target)

makeElementEquality

public Constraint makeElementEquality(IntVar[] vars,
                                      IntVar index,
                                      IntVar target)

makeElementEquality

public Constraint makeElementEquality(IntVar[] vars,
                                      IntVar index,
                                      long target)

makeAbsEquality

public Constraint makeAbsEquality(IntVar var,
                                  IntVar abs_var)

Creates the constraint abs(var) == abs_var.

makeIndexOfConstraint
```
public Constraint makeIndexOfConstraint(IntVar[] vars,
                                        IntVar index,
                                        long target)
```
This constraint is a special case of the element constraint with
an array of integer variables, where the variables are all
different and the index variable is constrained such that
vars[index] == target.

makeConstraintInitialPropagateCallback
```
public Demon makeConstraintInitialPropagateCallback(Constraint ct)
```
This method is a specialized case of the MakeConstraintDemon
method to call the InitiatePropagate of the constraint 'ct'.

makeDelayedConstraintInitialPropagateCallback
```
public Demon makeDelayedConstraintInitialPropagateCallback(Constraint ct)
```
This method is a specialized case of the MakeConstraintDemon
method to call the InitiatePropagate of the constraint 'ct' with
low priority.

makeClosureDemon

public Demon makeClosureDemon(java.lang.Runnable closure)

Creates a demon from a closure.

makeBetweenCt

public Constraint makeBetweenCt(IntExpr expr,
                                long l,
                                long u)

(l <= expr <= u)

makeNotBetweenCt
```
public Constraint makeNotBetweenCt(IntExpr expr,
                                   long l,
                                   long u)
```
(expr < l || expr > u)
This constraint is lazy as it will not make holes in the domain of
variables. It will propagate only when expr->Min() >= l
or expr->Max() <= u.

makeIsBetweenCt

public Constraint makeIsBetweenCt(IntExpr expr,
                                  long l,
                                  long u,
                                  IntVar b)

b == (l <= expr <= u)

makeIsBetweenVar

public IntVar makeIsBetweenVar(IntExpr v,
                               long l,
                               long u)

makeMemberCt
```
public Constraint makeMemberCt(IntExpr expr,
                               long[] values)
```
expr in set. Propagation is lazy, i.e. this constraint does not
creates holes in the domain of the variable.

makeMemberCt

public Constraint makeMemberCt(IntExpr expr,
                               int[] values)

makeNotMemberCt

public Constraint makeNotMemberCt(IntExpr expr,
                                  long[] values)

expr not in set.

makeNotMemberCt

public Constraint makeNotMemberCt(IntExpr expr,
                                  int[] values)

makeNotMemberCt

public Constraint makeNotMemberCt(IntExpr expr,
                                  long[] starts,
                                  long[] ends)

expr should not be in the list of forbidden intervals [start[i]..end[i]].

makeNotMemberCt

public Constraint makeNotMemberCt(IntExpr expr,
                                  int[] starts,
                                  int[] ends)

expr should not be in the list of forbidden intervals [start[i]..end[i]].

makeIsMemberCt

public Constraint makeIsMemberCt(IntExpr expr,
                                 long[] values,
                                 IntVar boolvar)

boolvar == (expr in set)

makeIsMemberCt

public Constraint makeIsMemberCt(IntExpr expr,
                                 int[] values,
                                 IntVar boolvar)

makeIsMemberVar

public IntVar makeIsMemberVar(IntExpr expr,
                              long[] values)

makeIsMemberVar

public IntVar makeIsMemberVar(IntExpr expr,
                              int[] values)

makeCount

public Constraint makeCount(IntVar[] vars,
                            long value,
                            long max_count)

|{i | vars[i] == value}| == max_count

makeCount

public Constraint makeCount(IntVar[] vars,
                            long value,
                            IntVar max_count)

|{i | vars[i] == value}| == max_count

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 long[] values,
                                 IntVar[] cards)

Aggregated version of count: |{i | v[i] == values[j]}| == cards[j]

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 int[] values,
                                 IntVar[] cards)

Aggregated version of count: |{i | v[i] == values[j]}| == cards[j]

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 IntVar[] cards)

Aggregated version of count: |{i | v[i] == j}| == cards[j]

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 long card_min,
                                 long card_max,
                                 long card_size)

Aggregated version of count with bounded cardinalities:
forall j in 0 .. card_size - 1: card_min <= |{i | v[i] == j}| <= card_max

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 long[] card_min,
                                 long[] card_max)

Aggregated version of count with bounded cardinalities:
forall j in 0 .. card_size - 1:
card_min[j] <= |{i | v[i] == j}| <= card_max[j]

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 int[] card_min,
                                 int[] card_max)

Aggregated version of count with bounded cardinalities:
forall j in 0 .. card_size - 1:
card_min[j] <= |{i | v[i] == j}| <= card_max[j]

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 long[] values,
                                 long[] card_min,
                                 long[] card_max)

Aggregated version of count with bounded cardinalities:
forall j in 0 .. card_size - 1:
card_min[j] <= |{i | v[i] == values[j]}| <= card_max[j]

makeDistribute

public Constraint makeDistribute(IntVar[] vars,
                                 int[] values,
                                 int[] card_min,
                                 int[] card_max)

Aggregated version of count with bounded cardinalities:
forall j in 0 .. card_size - 1:
card_min[j] <= |{i | v[i] == values[j]}| <= card_max[j]

makeDeviation

public Constraint makeDeviation(IntVar[] vars,
                                IntVar deviation_var,
                                long total_sum)

Deviation constraint:
sum_i |n * vars[i] - total_sum| <= deviation_var and
sum_i vars[i] == total_sum
n = #vars

makeAllDifferent
```
public Constraint makeAllDifferent(IntVar[] vars)
```
All variables are pairwise different. This corresponds to the
stronger version of the propagation algorithm.

makeAllDifferent
```
public Constraint makeAllDifferent(IntVar[] vars,
                                   boolean stronger_propagation)
```
All variables are pairwise different. If 'stronger_propagation'
is true, stronger, and potentially slower propagation will
occur. This API will be deprecated in the future.

makeAllDifferentExcept

public Constraint makeAllDifferentExcept(IntVar[] vars,
                                         long escape_value)

All variables are pairwise different, unless they are assigned to
the escape value.

makeSortingConstraint
```
public Constraint makeSortingConstraint(IntVar[] vars,
                                        IntVar[] sorted)
```
Creates a constraint binding the arrays of variables "vars" and
"sorted_vars": sorted_vars[0] must be equal to the minimum of all
variables in vars, and so on: the value of sorted_vars[i] must be
equal to the i-th value of variables invars.

This constraint propagates in both directions: from "vars" to
"sorted_vars" and vice-versa.

Behind the scenes, this constraint maintains that:
- sorted is always increasing.
- whatever the values of vars, there exists a permutation that
injects its values into the sorted variables.

For more info, please have a look at:
https://mpi-inf.mpg.de/~mehlhorn/ftp/Mehlhorn-Thiel.pdf

makeLexicalLess

public Constraint makeLexicalLess(IntVar[] left,
                                  IntVar[] right)

Creates a constraint that enforces that left is lexicographically less
than right.

makeLexicalLessOrEqual

public Constraint makeLexicalLessOrEqual(IntVar[] left,
                                         IntVar[] right)

Creates a constraint that enforces that left is lexicographically less
than or equal to right.

MakeLexicalLessOrEqualWithOffsets
```
public Constraint MakeLexicalLessOrEqualWithOffsets(IntVar[] left,
                                                    IntVar[] right,
                                                    long[] offsets)
```
Creates a constraint that enforces that left is lexicographically less
than or equal to right with an offset. This means that for the first index
i such that left[i] is not in [right[i] - (offset[i] - 1), right[i]],
left[i] + offset[i] <= right[i]. Offset values must be > 0.

MakeIsLexicalLessOrEqualWithOffsetsCt

public Constraint MakeIsLexicalLessOrEqualWithOffsetsCt(IntVar[] left,
                                                        IntVar[] right,
                                                        long[] offsets,
                                                        IntVar boolvar)

makeInversePermutationConstraint
```
public Constraint makeInversePermutationConstraint(IntVar[] left,
                                                   IntVar[] right)
```
Creates a constraint that enforces that 'left' and 'right' both
represent permutations of [0..left.size()-1], and that 'right' is
the inverse permutation of 'left', i.e. for all i in
[0..left.size()-1], right[left[i]] = i.

makeIndexOfFirstMaxValueConstraint

public Constraint makeIndexOfFirstMaxValueConstraint(IntVar index,
                                                     IntVar[] vars)

Creates a constraint that binds the index variable to the index of the
first variable with the maximum value.

makeIndexOfFirstMinValueConstraint

public Constraint makeIndexOfFirstMinValueConstraint(IntVar index,
                                                     IntVar[] vars)

Creates a constraint that binds the index variable to the index of the
first variable with the minimum value.

makeNullIntersect
```
public Constraint makeNullIntersect(IntVar[] first_vars,
                                    IntVar[] second_vars)
```
Creates a constraint that states that all variables in the first
vector are different from all variables in the second
group. Thus the set of values in the first vector does not
intersect with the set of values in the second vector.

makeNullIntersectExcept
```
public Constraint makeNullIntersectExcept(IntVar[] first_vars,
                                          IntVar[] second_vars,
                                          long escape_value)
```
Creates a constraint that states that all variables in the first
vector are different from all variables from the second group,
unless they are assigned to the escape value. Thus the set of
values in the first vector minus the escape value does not
intersect with the set of values in the second vector.

makeNoCycle
```
public Constraint makeNoCycle(IntVar[] nexts,
                              IntVar[] active,
                              java.util.function.LongPredicate sink_handler)
```
Prevent cycles. The "nexts" variables represent the next in the chain.
"active" variables indicate if the corresponding next variable is active;
this could be useful to model unperformed nodes in a routing problem.
A callback can be added to specify sink values (by default sink values
are values >= vars.size()). Ownership of the callback is passed to the
constraint.
If assume_paths is either not specified or true, the constraint assumes
the "nexts" variables represent paths (and performs a faster propagation);
otherwise the constraint assumes they represent a forest.

makeNoCycle
```
public Constraint makeNoCycle(IntVar[] nexts,
                              IntVar[] active)
```
Prevent cycles. The "nexts" variables represent the next in the chain.
"active" variables indicate if the corresponding next variable is active;
this could be useful to model unperformed nodes in a routing problem.
A callback can be added to specify sink values (by default sink values
are values >= vars.size()). Ownership of the callback is passed to the
constraint.
If assume_paths is either not specified or true, the constraint assumes
the "nexts" variables represent paths (and performs a faster propagation);
otherwise the constraint assumes they represent a forest.

makeNoCycle

public Constraint makeNoCycle(IntVar[] nexts,
                              IntVar[] active,
                              java.util.function.LongPredicate sink_handler,
                              boolean assume_paths)

makeCircuit
```
public Constraint makeCircuit(IntVar[] nexts)
```
Force the "nexts" variable to create a complete Hamiltonian path.

makeSubCircuit
```
public Constraint makeSubCircuit(IntVar[] nexts)
```
Force the "nexts" variable to create a complete Hamiltonian path
for those that do not loop upon themselves.

makePathCumul

public Constraint makePathCumul(IntVar[] nexts,
                                IntVar[] active,
                                IntVar[] cumuls,
                                IntVar[] transits)

Creates a constraint which accumulates values along a path such that:
cumuls[next[i]] = cumuls[i] + transits[i].
Active variables indicate if the corresponding next variable is active;
this could be useful to model unperformed nodes in a routing problem.

makeDelayedPathCumul

public Constraint makeDelayedPathCumul(IntVar[] nexts,
                                       IntVar[] active,
                                       IntVar[] cumuls,
                                       IntVar[] transits)

Delayed version of the same constraint: propagation on the nexts variables
is delayed until all constraints have propagated.

makePathCumul
```
public Constraint makePathCumul(IntVar[] nexts,
                                IntVar[] active,
                                IntVar[] cumuls,
                                java.util.function.LongBinaryOperator transit_evaluator)
```
Creates a constraint which accumulates values along a path such that:
cumuls[next[i]] = cumuls[i] + transit_evaluator(i, next[i]).
Active variables indicate if the corresponding next variable is active;
this could be useful to model unperformed nodes in a routing problem.
Ownership of transit_evaluator is taken and it must be a repeatable
callback.

makePathCumul

public Constraint makePathCumul(IntVar[] nexts,
                                IntVar[] active,
                                IntVar[] cumuls,
                                IntVar[] slacks,
                                java.util.function.LongBinaryOperator transit_evaluator)

Creates a constraint which accumulates values along a path such that:
cumuls[next[i]] = cumuls[i] + transit_evaluator(i, next[i]) + slacks[i].
Active variables indicate if the corresponding next variable is active;
this could be useful to model unperformed nodes in a routing problem.
Ownership of transit_evaluator is taken and it must be a repeatable
callback.

makePathConnected

public Constraint makePathConnected(IntVar[] nexts,
                                    long[] sources,
                                    long[] sinks,
                                    IntVar[] status)

Constraint enforcing that status[i] is true iff there's a path defined on
next variables from sources[i] to sinks[i].
Check whether more propagation is needed.

makeMapDomain
```
public Constraint makeMapDomain(IntVar var,
                                IntVar[] actives)
```
This constraint maps the domain of 'var' onto the array of
variables 'actives'. That is
for all i in [0 .. size - 1]: actives[i] == 1 <=> var->Contains(i);

makeAllowedAssignment
```
public Constraint makeAllowedAssignment(IntVar[] vars,
                                        IntTupleSet tuples)
```
This method creates a constraint where the graph of the relation
between the variables is given in extension. There are 'arity'
variables involved in the relation and the graph is given by a
integer tuple set.

makeTransitionConstraint
```
public Constraint makeTransitionConstraint(IntVar[] vars,
                                           IntTupleSet transition_table,
                                           long initial_state,
                                           long[] final_states)
```
This constraint create a finite automaton that will check the
sequence of variables vars. It uses a transition table called
'transition_table'. Each transition is a triple
(current_state, variable_value, new_state).
The initial state is given, and the set of accepted states is decribed
by 'final_states'. These states are hidden inside the constraint.
Only the transitions (i.e. the variables) are visible.

makeTransitionConstraint
```
public Constraint makeTransitionConstraint(IntVar[] vars,
                                           IntTupleSet transition_table,
                                           long initial_state,
                                           int[] final_states)
```
This constraint create a finite automaton that will check the
sequence of variables vars. It uses a transition table called
'transition_table'. Each transition is a triple
(current_state, variable_value, new_state).
The initial state is given, and the set of accepted states is decribed
by 'final_states'. These states are hidden inside the constraint.
Only the transitions (i.e. the variables) are visible.

makeNonOverlappingBoxesConstraint

public Constraint makeNonOverlappingBoxesConstraint(IntVar[] x_vars,
                                                    IntVar[] y_vars,
                                                    IntVar[] x_size,
                                                    IntVar[] y_size)

This constraint states that all the boxes must not overlap.
The coordinates of box i are:
(x_vars[i], y_vars[i]),
(x_vars[i], y_vars[i] + y_size[i]),
(x_vars[i] + x_size[i], y_vars[i]),
(x_vars[i] + x_size[i], y_vars[i] + y_size[i]).
The sizes must be non-negative. Boxes with a zero dimension can be
pushed like any box.

makeNonOverlappingBoxesConstraint

public Constraint makeNonOverlappingBoxesConstraint(IntVar[] x_vars,
                                                    IntVar[] y_vars,
                                                    SWIGTYPE_p_absl__SpanT_long_const_t x_size,
                                                    SWIGTYPE_p_absl__SpanT_long_const_t y_size)

makeNonOverlappingBoxesConstraint

public Constraint makeNonOverlappingBoxesConstraint(IntVar[] x_vars,
                                                    IntVar[] y_vars,
                                                    SWIGTYPE_p_absl__SpanT_int_const_t x_size,
                                                    SWIGTYPE_p_absl__SpanT_int_const_t y_size)

makeNonOverlappingNonStrictBoxesConstraint

public Constraint makeNonOverlappingNonStrictBoxesConstraint(IntVar[] x_vars,
                                                             IntVar[] y_vars,
                                                             IntVar[] x_size,
                                                             IntVar[] y_size)

This constraint states that all the boxes must not overlap.
The coordinates of box i are:
(x_vars[i], y_vars[i]),
(x_vars[i], y_vars[i] + y_size[i]),
(x_vars[i] + x_size[i], y_vars[i]),
(x_vars[i] + x_size[i], y_vars[i] + y_size[i]).
The sizes must be positive.
Boxes with a zero dimension can be placed anywhere.

makeNonOverlappingNonStrictBoxesConstraint

public Constraint makeNonOverlappingNonStrictBoxesConstraint(IntVar[] x_vars,
                                                             IntVar[] y_vars,
                                                             SWIGTYPE_p_absl__SpanT_long_const_t x_size,
                                                             SWIGTYPE_p_absl__SpanT_long_const_t y_size)

makeNonOverlappingNonStrictBoxesConstraint

public Constraint makeNonOverlappingNonStrictBoxesConstraint(IntVar[] x_vars,
                                                             IntVar[] y_vars,
                                                             SWIGTYPE_p_absl__SpanT_int_const_t x_size,
                                                             SWIGTYPE_p_absl__SpanT_int_const_t y_size)

makePack
```
public Pack makePack(IntVar[] vars,
                     int number_of_bins)
```
This constraint packs all variables onto 'number_of_bins'
variables. For any given variable, a value of 'number_of_bins'
indicates that the variable is not assigned to any bin.
Dimensions, i.e., cumulative constraints on this packing, can be
added directly from the pack class.

makeFixedDurationIntervalVar

public IntervalVar makeFixedDurationIntervalVar(long start_min,
                                                long start_max,
                                                long duration,
                                                boolean optional,
                                                java.lang.String name)

Creates an interval var with a fixed duration. The duration must
be greater than 0. If optional is true, then the interval can be
performed or unperformed. If optional is false, then the interval
is always performed.

makeFixedDurationIntervalVar

public IntervalVar makeFixedDurationIntervalVar(IntVar start_variable,
                                                long duration,
                                                java.lang.String name)

Creates a performed interval var with a fixed duration. The duration must
be greater than 0.

makeFixedDurationIntervalVar

public IntervalVar makeFixedDurationIntervalVar(IntVar start_variable,
                                                long duration,
                                                IntVar performed_variable,
                                                java.lang.String name)

Creates an interval var with a fixed duration, and performed_variable.
The duration must be greater than 0.

makeFixedInterval

public IntervalVar makeFixedInterval(long start,
                                     long duration,
                                     java.lang.String name)

Creates a fixed and performed interval.

makeIntervalVar

public IntervalVar makeIntervalVar(long start_min,
                                   long start_max,
                                   long duration_min,
                                   long duration_max,
                                   long end_min,
                                   long end_max,
                                   boolean optional,
                                   java.lang.String name)

Creates an interval var by specifying the bounds on start,
duration, and end.

makeMirrorInterval
```
public IntervalVar makeMirrorInterval(IntervalVar interval_var)
```
Creates an interval var that is the mirror image of the given one, that
is, the interval var obtained by reversing the axis.

makeFixedDurationStartSyncedOnStartIntervalVar
```
public IntervalVar makeFixedDurationStartSyncedOnStartIntervalVar(IntervalVar interval_var,
                                                                  long duration,
                                                                  long offset)
```
Creates an interval var with a fixed duration whose start is
synchronized with the start of another interval, with a given
offset. The performed status is also in sync with the performed
status of the given interval variable.

makeFixedDurationStartSyncedOnEndIntervalVar
```
public IntervalVar makeFixedDurationStartSyncedOnEndIntervalVar(IntervalVar interval_var,
                                                                long duration,
                                                                long offset)
```
Creates an interval var with a fixed duration whose start is
synchronized with the end of another interval, with a given
offset. The performed status is also in sync with the performed
status of the given interval variable.

makeFixedDurationEndSyncedOnStartIntervalVar
```
public IntervalVar makeFixedDurationEndSyncedOnStartIntervalVar(IntervalVar interval_var,
                                                                long duration,
                                                                long offset)
```
Creates an interval var with a fixed duration whose end is
synchronized with the start of another interval, with a given
offset. The performed status is also in sync with the performed
status of the given interval variable.

makeFixedDurationEndSyncedOnEndIntervalVar
```
public IntervalVar makeFixedDurationEndSyncedOnEndIntervalVar(IntervalVar interval_var,
                                                              long duration,
                                                              long offset)
```
Creates an interval var with a fixed duration whose end is
synchronized with the end of another interval, with a given
offset. The performed status is also in sync with the performed
status of the given interval variable.

makeIntervalRelaxedMin
```
public IntervalVar makeIntervalRelaxedMin(IntervalVar interval_var)
```
Creates and returns an interval variable that wraps around the given one,
relaxing the min start and end. Relaxing means making unbounded when
optional. If the variable is non-optional, this method returns
interval_var.

More precisely, such an interval variable behaves as follows:
When the underlying must be performed, the returned interval variable
behaves exactly as the underlying;
When the underlying may or may not be performed, the returned interval
variable behaves like the underlying, except that it is unbounded on
the min side;
When the underlying cannot be performed, the returned interval variable
is of duration 0 and must be performed in an interval unbounded on
both sides.

This is very useful to implement propagators that may only modify
the start max or end max.

makeIntervalRelaxedMax
```
public IntervalVar makeIntervalRelaxedMax(IntervalVar interval_var)
```
Creates and returns an interval variable that wraps around the given one,
relaxing the max start and end. Relaxing means making unbounded when
optional. If the variable is non optional, this method returns
interval_var.

More precisely, such an interval variable behaves as follows:
When the underlying must be performed, the returned interval variable
behaves exactly as the underlying;
When the underlying may or may not be performed, the returned interval
variable behaves like the underlying, except that it is unbounded on
the max side;
When the underlying cannot be performed, the returned interval variable
is of duration 0 and must be performed in an interval unbounded on
both sides.

This is very useful for implementing propagators that may only modify
the start min or end min.

makeIntervalVarRelation

public Constraint makeIntervalVarRelation(IntervalVar t,
                                          int r,
                                          long d)

This method creates a relation between an interval var and a
date.

makeIntervalVarRelation

public Constraint makeIntervalVarRelation(IntervalVar t1,
                                          int r,
                                          IntervalVar t2)

This method creates a relation between two interval vars.

makeIntervalVarRelationWithDelay

public Constraint makeIntervalVarRelationWithDelay(IntervalVar t1,
                                                   int r,
                                                   IntervalVar t2,
                                                   long delay)

This method creates a relation between two interval vars.
The given delay is added to the second interval.
i.e.: t1 STARTS_AFTER_END of t2 with a delay of 2
means t1 will start at least two units of time after the end of t2.

makeTemporalDisjunction

public Constraint makeTemporalDisjunction(IntervalVar t1,
                                          IntervalVar t2,
                                          IntVar alt)

This constraint implements a temporal disjunction between two
interval vars t1 and t2. 'alt' indicates which alternative was
chosen (alt == 0 is equivalent to t1 before t2).

makeTemporalDisjunction

public Constraint makeTemporalDisjunction(IntervalVar t1,
                                          IntervalVar t2)

This constraint implements a temporal disjunction between two
interval vars.

makeDisjunctiveConstraint

public DisjunctiveConstraint makeDisjunctiveConstraint(IntervalVar[] intervals,
                                                       java.lang.String name)

This constraint forces all interval vars into an non-overlapping
sequence. Intervals with zero duration can be scheduled anywhere.

makeStrictDisjunctiveConstraint

public DisjunctiveConstraint makeStrictDisjunctiveConstraint(IntervalVar[] intervals,
                                                             java.lang.String name)

This constraint forces all interval vars into an non-overlapping
sequence. Intervals with zero durations cannot overlap with over
intervals.

makeCumulative
```
public Constraint makeCumulative(IntervalVar[] intervals,
                                 long[] demands,
                                 long capacity,
                                 java.lang.String name)
```
This constraint forces that, for any integer t, the sum of the demands
corresponding to an interval containing t does not exceed the given
capacity.

Intervals and demands should be vectors of equal size.

Demands should only contain non-negative values. Zero values are
supported, and the corresponding intervals are filtered out, as they
neither impact nor are impacted by this constraint.

makeCumulative
```
public Constraint makeCumulative(IntervalVar[] intervals,
                                 int[] demands,
                                 long capacity,
                                 java.lang.String name)
```
This constraint forces that, for any integer t, the sum of the demands
corresponding to an interval containing t does not exceed the given
capacity.

Intervals and demands should be vectors of equal size.

Demands should only contain non-negative values. Zero values are
supported, and the corresponding intervals are filtered out, as they
neither impact nor are impacted by this constraint.

makeCumulative
```
public Constraint makeCumulative(IntervalVar[] intervals,
                                 long[] demands,
                                 IntVar capacity,
                                 java.lang.String name)
```
This constraint forces that, for any integer t, the sum of the demands
corresponding to an interval containing t does not exceed the given
capacity.

Intervals and demands should be vectors of equal size.

Demands should only contain non-negative values. Zero values are
supported, and the corresponding intervals are filtered out, as they
neither impact nor are impacted by this constraint.

makeCumulative
```
public Constraint makeCumulative(IntervalVar[] intervals,
                                 int[] demands,
                                 IntVar capacity,
                                 java.lang.String name)
```
This constraint enforces that, for any integer t, the sum of the demands
corresponding to an interval containing t does not exceed the given
capacity.

Intervals and demands should be vectors of equal size.

Demands should only contain non-negative values. Zero values are
supported, and the corresponding intervals are filtered out, as they
neither impact nor are impacted by this constraint.

makeCumulative

public Constraint makeCumulative(IntervalVar[] intervals,
                                 IntVar[] demands,
                                 long capacity,
                                 java.lang.String name)

This constraint enforces that, for any integer t, the sum of demands
corresponding to an interval containing t does not exceed the given
capacity.

Intervals and demands should be vectors of equal size.

Demands should be positive.

makeCumulative

public Constraint makeCumulative(IntervalVar[] intervals,
                                 IntVar[] demands,
                                 IntVar capacity,
                                 java.lang.String name)

makeCover
```
public Constraint makeCover(IntervalVar[] vars,
                            IntervalVar target_var)
```
This constraint states that the target_var is the convex hull of
the intervals. If none of the interval variables is performed,
then the target var is unperformed too. Also, if the target
variable is unperformed, then all the intervals variables are
unperformed too.

makeEquality

public Constraint makeEquality(IntervalVar var1,
                               IntervalVar var2)

This constraints states that the two interval variables are equal.

makeAssignment
```
public Assignment makeAssignment()
```
This method creates an empty assignment.

makeAssignment
```
public Assignment makeAssignment(Assignment a)
```
This method creates an assignment which is a copy of 'a'.

makeFirstSolutionCollector

public SolutionCollector makeFirstSolutionCollector(Assignment assignment)

Collect the first solution of the search.

makeFirstSolutionCollector
```
public SolutionCollector makeFirstSolutionCollector()
```
Collect the first solution of the search. The variables will need to
be added later.

makeLastSolutionCollector

public SolutionCollector makeLastSolutionCollector(Assignment assignment)

Collect the last solution of the search.

makeLastSolutionCollector
```
public SolutionCollector makeLastSolutionCollector()
```
Collect the last solution of the search. The variables will need to
be added later.

makeBestValueSolutionCollector
```
public SolutionCollector makeBestValueSolutionCollector(Assignment assignment,
                                                        boolean maximize)
```
Collect the solution corresponding to the optimal value of the objective
of 'assignment'; if 'assignment' does not have an objective no solution is
collected. This collector only collects one solution corresponding to the
best objective value (the first one found).

MakeBestLexicographicValueSolutionCollector

public SolutionCollector MakeBestLexicographicValueSolutionCollector(Assignment assignment,
                                                                     SWIGTYPE_p_std__vectorT_bool_t maximize)

Same as above, but supporting lexicographic objectives; 'maximize'
specifies the optimization direction for each objective in 'assignment'.

makeBestValueSolutionCollector
```
public SolutionCollector makeBestValueSolutionCollector(boolean maximize)
```
Collect the solution corresponding to the optimal value of the
objective of the internal assignment; if this assignment does not have an
objective no solution is collected. This collector only collects one
solution corresponding to the best objective value (the first one found).
The variables and objective(s) will need to be added later.

MakeBestLexicographicValueSolutionCollector
```
public SolutionCollector MakeBestLexicographicValueSolutionCollector(SWIGTYPE_p_std__vectorT_bool_t maximize)
```
Same as above, but supporting lexicographic objectives; 'maximize'
specifies the optimization direction for each objective.

makeNBestValueSolutionCollector

public SolutionCollector makeNBestValueSolutionCollector(Assignment assignment,
                                                         int solution_count,
                                                         boolean maximize)

Same as MakeBestValueSolutionCollector but collects the best
solution_count solutions. Collected solutions are sorted in increasing
optimality order (the best solution is the last one).

makeNBestValueSolutionCollector

public SolutionCollector makeNBestValueSolutionCollector(int solution_count,
                                                         boolean maximize)

MakeNBestLexicographicValueSolutionCollector

public SolutionCollector MakeNBestLexicographicValueSolutionCollector(Assignment assignment,
                                                                      int solution_count,
                                                                      SWIGTYPE_p_std__vectorT_bool_t maximize)

Same as above but supporting lexicographic objectives; 'maximize'
specifies the optimization direction for each objective.

MakeNBestLexicographicValueSolutionCollector

public SolutionCollector MakeNBestLexicographicValueSolutionCollector(int solution_count,
                                                                      SWIGTYPE_p_std__vectorT_bool_t maximize)

makeAllSolutionCollector

public SolutionCollector makeAllSolutionCollector(Assignment assignment)

Collect all solutions of the search.

makeAllSolutionCollector
```
public SolutionCollector makeAllSolutionCollector()
```
Collect all solutions of the search. The variables will need to
be added later.

makeMinimize

public OptimizeVar makeMinimize(IntVar v,
                                long step)

Creates a minimization objective.

makeMaximize

public OptimizeVar makeMaximize(IntVar v,
                                long step)

Creates a maximization objective.

makeOptimize

public OptimizeVar makeOptimize(boolean maximize,
                                IntVar v,
                                long step)

Creates a objective with a given sense (true = maximization).

makeWeightedMinimize

public OptimizeVar makeWeightedMinimize(IntVar[] sub_objectives,
                                        long[] weights,
                                        long step)

Creates a minimization weighted objective. The actual objective is
scalar_prod(sub_objectives, weights).

makeWeightedMinimize

public OptimizeVar makeWeightedMinimize(IntVar[] sub_objectives,
                                        int[] weights,
                                        long step)

Creates a minimization weighted objective. The actual objective is
scalar_prod(sub_objectives, weights).

makeWeightedMaximize

public OptimizeVar makeWeightedMaximize(IntVar[] sub_objectives,
                                        long[] weights,
                                        long step)

Creates a maximization weigthed objective.

makeWeightedMaximize

public OptimizeVar makeWeightedMaximize(IntVar[] sub_objectives,
                                        int[] weights,
                                        long step)

Creates a maximization weigthed objective.

makeWeightedOptimize

public OptimizeVar makeWeightedOptimize(boolean maximize,
                                        IntVar[] sub_objectives,
                                        long[] weights,
                                        long step)

Creates a weighted objective with a given sense (true = maximization).

makeWeightedOptimize

public OptimizeVar makeWeightedOptimize(boolean maximize,
                                        IntVar[] sub_objectives,
                                        int[] weights,
                                        long step)

Creates a weighted objective with a given sense (true = maximization).

MakeLexicographicOptimize

public OptimizeVar MakeLexicographicOptimize(SWIGTYPE_p_std__vectorT_bool_t maximize,
                                             IntVar[] variables,
                                             long[] steps)

Creates a lexicographic objective, following the order of the variables
given. Each variable has a corresponding optimization direction and step.

makeTabuSearch
```
public ObjectiveMonitor makeTabuSearch(boolean maximize,
                                       IntVar objective,
                                       long step,
                                       IntVar[] vars,
                                       long keep_tenure,
                                       long forbid_tenure,
                                       double tabu_factor)
```
MetaHeuristics which try to get the search out of local optima.
Creates a Tabu Search monitor.
In the context of local search the behavior is similar to MakeOptimize(),
creating an objective in a given sense. The behavior differs once a local
optimum is reached: thereafter solutions which degrade the value of the
objective are allowed if they are not "tabu". A solution is "tabu" if it
doesn't respect the following rules:
- improving the best solution found so far
- variables in the "keep" list must keep their value, variables in the
"forbid" list must not take the value they have in the list.
Variables with new values enter the tabu lists after each new solution
found and leave the lists after a given number of iterations (called
tenure). Only the variables passed to the method can enter the lists.
The tabu criterion is softened by the tabu factor which gives the number
of "tabu" violations which is tolerated; a factor of 1 means no violations
allowed; a factor of 0 means all violations are allowed.

MakeLexicographicTabuSearch

public ObjectiveMonitor MakeLexicographicTabuSearch(SWIGTYPE_p_std__vectorT_bool_t maximize,
                                                    IntVar[] objectives,
                                                    long[] steps,
                                                    IntVar[] vars,
                                                    long keep_tenure,
                                                    long forbid_tenure,
                                                    double tabu_factor)

makeGenericTabuSearch

public ObjectiveMonitor makeGenericTabuSearch(boolean maximize,
                                              IntVar v,
                                              long step,
                                              IntVar[] tabu_vars,
                                              long forbid_tenure)

Creates a Tabu Search based on the vars |vars|.
A solution is "tabu" if all the vars in |vars| keep their value.

makeSimulatedAnnealing

public ObjectiveMonitor makeSimulatedAnnealing(boolean maximize,
                                               IntVar v,
                                               long step,
                                               long initial_temperature)

Creates a Simulated Annealing monitor.

MakeLexicographicSimulatedAnnealing

public ObjectiveMonitor MakeLexicographicSimulatedAnnealing(SWIGTYPE_p_std__vectorT_bool_t maximize,
                                                            IntVar[] vars,
                                                            long[] steps,
                                                            long[] initial_temperatures)

MakeRoundRobinCompoundObjectiveMonitor

public BaseObjectiveMonitor MakeRoundRobinCompoundObjectiveMonitor(SWIGTYPE_p_std__vectorT_operations_research__BaseObjectiveMonitor_p_t monitors,
                                                                   int num_max_local_optima_before_metaheuristic_switch)

Creates a Guided Local Search monitor.
Description here: http://en.wikipedia.org/wiki/Guided_Local_Search

makeLubyRestart
```
public SearchMonitor makeLubyRestart(int scale_factor)
```
This search monitor will restart the search periodically.
At the iteration n, it will restart after scale_factor * Luby(n) failures
where Luby is the Luby Strategy (i.e. 1 1 2 1 1 2 4 1 1 2 1 1 2 4 8...).

makeConstantRestart
```
public SearchMonitor makeConstantRestart(int frequency)
```
This search monitor will restart the search periodically after 'frequency'
failures.

makeTimeLimit

public RegularLimit makeTimeLimit(SWIGTYPE_p_absl__Duration time)

Creates a search limit that constrains the running time.

makeTimeLimit

public RegularLimit makeTimeLimit(long time_in_ms)

makeBranchesLimit
```
public RegularLimit makeBranchesLimit(long branches)
```
Creates a search limit that constrains the number of branches
explored in the search tree.

makeFailuresLimit
```
public RegularLimit makeFailuresLimit(long failures)
```
Creates a search limit that constrains the number of failures
that can happen when exploring the search tree.

makeSolutionsLimit
```
public RegularLimit makeSolutionsLimit(long solutions)
```
Creates a search limit that constrains the number of solutions found
during the search.

makeLimit

public RegularLimit makeLimit(SWIGTYPE_p_absl__Duration time,
                              long branches,
                              long failures,
                              long solutions,
                              boolean smart_time_check,
                              boolean cumulative)

Limits the search with the 'time', 'branches', 'failures' and
'solutions' limits. 'smart_time_check' reduces the calls to the wall

makeLimit

public RegularLimit makeLimit(SWIGTYPE_p_absl__Duration time,
                              long branches,
                              long failures,
                              long solutions,
                              boolean smart_time_check)

Limits the search with the 'time', 'branches', 'failures' and
'solutions' limits. 'smart_time_check' reduces the calls to the wall

makeLimit

public RegularLimit makeLimit(SWIGTYPE_p_absl__Duration time,
                              long branches,
                              long failures,
                              long solutions)

Limits the search with the 'time', 'branches', 'failures' and
'solutions' limits. 'smart_time_check' reduces the calls to the wall

makeLimit

public RegularLimit makeLimit(RegularLimitParameters proto)

Creates a search limit from its protobuf description

makeLimit

public RegularLimit makeLimit(long time,
                              long branches,
                              long failures,
                              long solutions,
                              boolean smart_time_check,
                              boolean cumulative)

makeLimit

public RegularLimit makeLimit(long time,
                              long branches,
                              long failures,
                              long solutions,
                              boolean smart_time_check)

makeLimit

public RegularLimit makeLimit(long time,
                              long branches,
                              long failures,
                              long solutions)

makeDefaultRegularLimitParameters
```
public RegularLimitParameters makeDefaultRegularLimitParameters()
```
Creates a regular limit proto containing default values.

makeLimit
```
public SearchLimit makeLimit(SearchLimit limit_1,
                             SearchLimit limit_2)
```
Creates a search limit that is reached when either of the underlying limit
is reached. That is, the returned limit is more stringent than both
argument limits.

MakeImprovementLimit

public ImprovementSearchLimit MakeImprovementLimit(IntVar objective_var,
                                                   boolean maximize,
                                                   double objective_scaling_factor,
                                                   double objective_offset,
                                                   double improvement_rate_coefficient,
                                                   int improvement_rate_solutions_distance)

Limits the search based on the improvements of 'objective_var'. Stops the
search when the improvement rate gets lower than a threshold value. This
threshold value is computed based on the improvement rate during the first
phase of the search.

MakeLexicographicImprovementLimit

public ImprovementSearchLimit MakeLexicographicImprovementLimit(IntVar[] objective_vars,
                                                                SWIGTYPE_p_std__vectorT_bool_t maximize,
                                                                double[] objective_scaling_factors,
                                                                double[] objective_offsets,
                                                                double improvement_rate_coefficient,
                                                                int improvement_rate_solutions_distance)

Same as MakeImprovementLimit on a lexicographic objective based on
'objective_vars' and related arguments.

makeCustomLimit
```
public SearchLimit makeCustomLimit(java.util.function.BooleanSupplier limiter)
```
Callback-based search limit. Search stops when limiter returns true; if
this happens at a leaf the corresponding solution will be rejected.

makeSearchLog
```
public SearchMonitor makeSearchLog(int branch_period)
```
The SearchMonitors below will display a periodic search log
on LOG(INFO) every branch_period branches explored.

makeSearchLog

public SearchMonitor makeSearchLog(int branch_period,
                                   IntVar var)

At each solution, this monitor also display the var value.

makeSearchLog

public SearchMonitor makeSearchLog(int branch_period,
                                   java.util.function.Supplier<java.lang.String> display_callback)

At each solution, this monitor will also display result of
display_callback.

makeSearchLog

public SearchMonitor makeSearchLog(int branch_period,
                                   IntVar var,
                                   java.util.function.Supplier<java.lang.String> display_callback)

At each solution, this monitor will display the 'var' value and the
result of display_callback.

makeSearchLog

public SearchMonitor makeSearchLog(int branch_period,
                                   IntVar[] vars,
                                   java.util.function.Supplier<java.lang.String> display_callback)

At each solution, this monitor will display the 'vars' values and the
result of display_callback.

makeSearchLog

public SearchMonitor makeSearchLog(int branch_period,
                                   OptimizeVar opt_var)

OptimizeVar Search Logs
At each solution, this monitor will also display the 'opt_var' value.

makeSearchLog

public SearchMonitor makeSearchLog(int branch_period,
                                   OptimizeVar opt_var,
                                   java.util.function.Supplier<java.lang.String> display_callback)

Creates a search monitor that will also print the result of the
display callback.

makeSearchTrace
```
public SearchMonitor makeSearchTrace(java.lang.String prefix)
```
Creates a search monitor that will trace precisely the behavior of the
search. Use this only for low level debugging.

makeEnterSearchCallback

public SearchMonitor makeEnterSearchCallback(java.lang.Runnable callback)

----- Callback-based search monitors -----

makeExitSearchCallback

public SearchMonitor makeExitSearchCallback(java.lang.Runnable callback)

makeAtSolutionCallback

public SearchMonitor makeAtSolutionCallback(java.lang.Runnable callback)

makePrintModelVisitor

public ModelVisitor makePrintModelVisitor()

Prints the model.

makeStatisticsModelVisitor
```
public ModelVisitor makeStatisticsModelVisitor()
```
Displays some nice statistics on the model.

makeSymmetryManager

public SearchMonitor makeSymmetryManager(SymmetryBreaker[] visitors)

Symmetry Breaking.

makeSymmetryManager

public SearchMonitor makeSymmetryManager(SymmetryBreaker v1)

makeSymmetryManager

public SearchMonitor makeSymmetryManager(SymmetryBreaker v1,
                                         SymmetryBreaker v2)

makeSymmetryManager

public SearchMonitor makeSymmetryManager(SymmetryBreaker v1,
                                         SymmetryBreaker v2,
                                         SymmetryBreaker v3)

makeSymmetryManager

public SearchMonitor makeSymmetryManager(SymmetryBreaker v1,
                                         SymmetryBreaker v2,
                                         SymmetryBreaker v3,
                                         SymmetryBreaker v4)

makeAssignVariableValue

public Decision makeAssignVariableValue(IntVar var,
                                        long val)

Decisions.

makeVariableLessOrEqualValue

public Decision makeVariableLessOrEqualValue(IntVar var,
                                             long value)

makeVariableGreaterOrEqualValue

public Decision makeVariableGreaterOrEqualValue(IntVar var,
                                                long value)

makeSplitVariableDomain

public Decision makeSplitVariableDomain(IntVar var,
                                        long val,
                                        boolean start_with_lower_half)

makeAssignVariableValueOrFail

public Decision makeAssignVariableValueOrFail(IntVar var,
                                              long value)

MakeAssignVariableValueOrDoNothing

public Decision MakeAssignVariableValueOrDoNothing(IntVar var,
                                                   long value)

makeAssignVariablesValues

public Decision makeAssignVariablesValues(IntVar[] vars,
                                          long[] values)

MakeAssignVariablesValuesOrDoNothing

public Decision MakeAssignVariablesValuesOrDoNothing(IntVar[] vars,
                                                     long[] values)

MakeAssignVariablesValuesOrFail

public Decision MakeAssignVariablesValuesOrFail(IntVar[] vars,
                                                long[] values)

makeFailDecision
```
public Decision makeFailDecision()
```

makeDecision

public Decision makeDecision(java.util.function.Consumer<Solver> apply,
                             java.util.function.Consumer<Solver> refute)

compose
```
public DecisionBuilder compose(DecisionBuilder db1,
                               DecisionBuilder db2)
```
Creates a decision builder which sequentially composes decision builders.
At each leaf of a decision builder, the next decision builder is therefore
called. For instance, Compose(db1, db2) will result in the following tree:
d1 tree |
| \ |
db1 leaves |
| \ |
db2 tree db2 tree db2 tree |

compose

public DecisionBuilder compose(DecisionBuilder db1,
                               DecisionBuilder db2,
                               DecisionBuilder db3)

compose

public DecisionBuilder compose(DecisionBuilder db1,
                               DecisionBuilder db2,
                               DecisionBuilder db3,
                               DecisionBuilder db4)

compose

public DecisionBuilder compose(DecisionBuilder[] dbs)

tryDecisions
```
public DecisionBuilder tryDecisions(DecisionBuilder db1,
                                    DecisionBuilder db2)
```
Creates a decision builder which will create a search tree where each
decision builder is called from the top of the search tree. For instance
the decision builder Try(db1, db2) will entirely explore the search tree
of db1 then the one of db2, resulting in the following search tree:
Tree root |
\ |
db1 tree db2 tree |

This is very handy to try a decision builder which partially explores the
search space and if it fails to try another decision builder.

"Try"-builders "recursively". For instance, Try(a,b,c,d) will give a tree
unbalanced to the right, whereas Try(Try(a,b), Try(b,c)) will give a
balanced tree. Investigate if we should only provide the binary version
and/or if we should balance automatically.

tryDecisions

public DecisionBuilder tryDecisions(DecisionBuilder db1,
                                    DecisionBuilder db2,
                                    DecisionBuilder db3)

tryDecisions

public DecisionBuilder tryDecisions(DecisionBuilder db1,
                                    DecisionBuilder db2,
                                    DecisionBuilder db3,
                                    DecisionBuilder db4)

tryDecisions

public DecisionBuilder tryDecisions(DecisionBuilder[] dbs)

makePhase

public DecisionBuilder makePhase(IntVar[] vars,
                                 int var_str,
                                 int val_str)

Phases on IntVar arrays.
for all other functions that have several homonyms in this .h).

makePhase

public DecisionBuilder makePhase(IntVar[] vars,
                                 java.util.function.LongUnaryOperator var_evaluator,
                                 int val_str)

makePhase

public DecisionBuilder makePhase(IntVar[] vars,
                                 int var_str,
                                 java.util.function.LongBinaryOperator value_evaluator)

makePhase

public DecisionBuilder makePhase(IntVar[] vars,
                                 int var_str,
                                 LongTernaryPredicate var_val1_val2_comparator)

var_val1_val2_comparator(var, val1, val2) is true iff assigning value
"val1" to variable "var" is better than assigning value "val2".

makePhase

public DecisionBuilder makePhase(IntVar[] vars,
                                 java.util.function.LongUnaryOperator var_evaluator,
                                 java.util.function.LongBinaryOperator value_evaluator)

makePhase

public DecisionBuilder makePhase(IntVar[] vars,
                                 int var_str,
                                 java.util.function.LongBinaryOperator value_evaluator,
                                 java.util.function.LongUnaryOperator tie_breaker)

makePhase

public DecisionBuilder makePhase(IntVar[] vars,
                                 java.util.function.LongUnaryOperator var_evaluator,
                                 java.util.function.LongBinaryOperator value_evaluator,
                                 java.util.function.LongUnaryOperator tie_breaker)

makeDefaultPhase

public DecisionBuilder makeDefaultPhase(IntVar[] vars)

makeDefaultPhase

public DecisionBuilder makeDefaultPhase(IntVar[] vars,
                                        DefaultPhaseParameters parameters)

makePhase

public DecisionBuilder makePhase(IntVar v0,
                                 int var_str,
                                 int val_str)

Shortcuts for small arrays.

makePhase

public DecisionBuilder makePhase(IntVar v0,
                                 IntVar v1,
                                 int var_str,
                                 int val_str)

makePhase

public DecisionBuilder makePhase(IntVar v0,
                                 IntVar v1,
                                 IntVar v2,
                                 int var_str,
                                 int val_str)

makePhase

public DecisionBuilder makePhase(IntVar v0,
                                 IntVar v1,
                                 IntVar v2,
                                 IntVar v3,
                                 int var_str,
                                 int val_str)

makeScheduleOrPostpone
```
public Decision makeScheduleOrPostpone(IntervalVar var,
                                       long est,
                                       SWIGTYPE_p_long marker)
```
Returns a decision that tries to schedule a task at a given time.
On the Apply branch, it will set that interval var as performed and set
its start to 'est'. On the Refute branch, it will just update the
'marker' to 'est' + 1. This decision is used in the
INTERVAL_SET_TIMES_FORWARD strategy.

makeScheduleOrExpedite
```
public Decision makeScheduleOrExpedite(IntervalVar var,
                                       long est,
                                       SWIGTYPE_p_long marker)
```
Returns a decision that tries to schedule a task at a given time.
On the Apply branch, it will set that interval var as performed and set
its end to 'est'. On the Refute branch, it will just update the
'marker' to 'est' - 1. This decision is used in the
INTERVAL_SET_TIMES_BACKWARD strategy.

makeRankFirstInterval

public Decision makeRankFirstInterval(SequenceVar sequence,
                                      int index)

Returns a decision that tries to rank first the ith interval var
in the sequence variable.

makeRankLastInterval

public Decision makeRankLastInterval(SequenceVar sequence,
                                     int index)

Returns a decision that tries to rank last the ith interval var
in the sequence variable.

makePhase
```
public DecisionBuilder makePhase(IntVar[] vars,
                                 java.util.function.LongBinaryOperator eval,
                                 int str)
```
Returns a decision builder which assigns values to variables which
minimize the values returned by the evaluator. The arguments passed to the
evaluator callback are the indices of the variables in vars and the values
of these variables. Ownership of the callback is passed to the decision
builder.

makePhase
```
public DecisionBuilder makePhase(IntVar[] vars,
                                 java.util.function.LongBinaryOperator eval,
                                 java.util.function.LongUnaryOperator tie_breaker,
                                 int str)
```
Returns a decision builder which assigns values to variables
which minimize the values returned by the evaluator. In case of
tie breaks, the second callback is used to choose the best index
in the array of equivalent pairs with equivalent evaluations. The
arguments passed to the evaluator callback are the indices of the
variables in vars and the values of these variables. Ownership of
the callback is passed to the decision builder.

makePhase

public DecisionBuilder makePhase(IntervalVar[] intervals,
                                 int str)

Scheduling phases.

makePhase

public DecisionBuilder makePhase(SequenceVar[] sequences,
                                 int str)

makeDecisionBuilderFromAssignment

public DecisionBuilder makeDecisionBuilderFromAssignment(Assignment assignment,
                                                         DecisionBuilder db,
                                                         IntVar[] vars)

Returns a decision builder for which the left-most leaf corresponds
to assignment, the rest of the tree being explored using 'db'.

makeConstraintAdder
```
public DecisionBuilder makeConstraintAdder(Constraint ct)
```
Returns a decision builder that will add the given constraint to
the model.

makeSolveOnce
```
public DecisionBuilder makeSolveOnce(DecisionBuilder db)
```
SolveOnce will collapse a search tree described by a decision
builder 'db' and a set of monitors and wrap it into a single point.
If there are no solutions to this nested tree, then SolveOnce will
fail. If there is a solution, it will find it and returns nullptr.

makeSolveOnce

public DecisionBuilder makeSolveOnce(DecisionBuilder db,
                                     SearchMonitor monitor1)

makeSolveOnce

public DecisionBuilder makeSolveOnce(DecisionBuilder db,
                                     SearchMonitor monitor1,
                                     SearchMonitor monitor2)

makeSolveOnce

public DecisionBuilder makeSolveOnce(DecisionBuilder db,
                                     SearchMonitor monitor1,
                                     SearchMonitor monitor2,
                                     SearchMonitor monitor3)

makeSolveOnce

public DecisionBuilder makeSolveOnce(DecisionBuilder db,
                                     SearchMonitor monitor1,
                                     SearchMonitor monitor2,
                                     SearchMonitor monitor3,
                                     SearchMonitor monitor4)

makeSolveOnce

public DecisionBuilder makeSolveOnce(DecisionBuilder db,
                                     SearchMonitor[] monitors)

makeNestedOptimize
```
public DecisionBuilder makeNestedOptimize(DecisionBuilder db,
                                          Assignment solution,
                                          boolean maximize,
                                          long step)
```
NestedOptimize will collapse a search tree described by a
decision builder 'db' and a set of monitors and wrap it into a
single point. If there are no solutions to this nested tree, then
NestedOptimize will fail. If there are solutions, it will find
the best as described by the mandatory objective in the solution
as well as the optimization direction, instantiate all variables
to this solution, and return nullptr.

makeNestedOptimize

public DecisionBuilder makeNestedOptimize(DecisionBuilder db,
                                          Assignment solution,
                                          boolean maximize,
                                          long step,
                                          SearchMonitor monitor1)

makeNestedOptimize

public DecisionBuilder makeNestedOptimize(DecisionBuilder db,
                                          Assignment solution,
                                          boolean maximize,
                                          long step,
                                          SearchMonitor monitor1,
                                          SearchMonitor monitor2)

makeNestedOptimize

public DecisionBuilder makeNestedOptimize(DecisionBuilder db,
                                          Assignment solution,
                                          boolean maximize,
                                          long step,
                                          SearchMonitor monitor1,
                                          SearchMonitor monitor2,
                                          SearchMonitor monitor3)

makeNestedOptimize

public DecisionBuilder makeNestedOptimize(DecisionBuilder db,
                                          Assignment solution,
                                          boolean maximize,
                                          long step,
                                          SearchMonitor monitor1,
                                          SearchMonitor monitor2,
                                          SearchMonitor monitor3,
                                          SearchMonitor monitor4)

makeNestedOptimize

public DecisionBuilder makeNestedOptimize(DecisionBuilder db,
                                          Assignment solution,
                                          boolean maximize,
                                          long step,
                                          SearchMonitor[] monitors)

makeRestoreAssignment
```
public DecisionBuilder makeRestoreAssignment(Assignment assignment)
```
Returns a DecisionBuilder which restores an Assignment
(calls void Assignment::Restore())

makeStoreAssignment
```
public DecisionBuilder makeStoreAssignment(Assignment assignment)
```
Returns a DecisionBuilder which stores an Assignment
(calls void Assignment::Store())

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        int op,
                                        SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors,
                                        SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_outgoing_neighbors)

Local Search Operators.

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        int op,
                                        SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors)

Local Search Operators.

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        int op)

Local Search Operators.

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        IntVar[] secondary_vars,
                                        int op,
                                        SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors,
                                        SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_outgoing_neighbors)

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        IntVar[] secondary_vars,
                                        int op,
                                        SWIGTYPE_p_std__functionT_std__vectorT_int_t_const_Rfint_intF_t get_incoming_neighbors)

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        IntVar[] secondary_vars,
                                        int op)

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        LongTernaryOperator evaluator,
                                        int op)

makeOperator

public LocalSearchOperator makeOperator(IntVar[] vars,
                                        IntVar[] secondary_vars,
                                        LongTernaryOperator evaluator,
                                        int op)

makeRandomLnsOperator
```
public LocalSearchOperator makeRandomLnsOperator(IntVar[] vars,
                                                 int number_of_variables)
```
Creates a large neighborhood search operator which creates fragments (set
of relaxed variables) with up to number_of_variables random variables
(sampling with replacement is performed meaning that at most
number_of_variables variables are selected). Warning: this operator will
always return neighbors; using it without a search limit will result in a
non-ending search.
Optionally a random seed can be specified.

makeRandomLnsOperator

public LocalSearchOperator makeRandomLnsOperator(IntVar[] vars,
                                                 int number_of_variables,
                                                 int seed)

makeMoveTowardTargetOperator
```
public LocalSearchOperator makeMoveTowardTargetOperator(Assignment target)
```
Creates a local search operator that tries to move the assignment of some
variables toward a target. The target is given as an Assignment. This
operator generates neighbors in which the only difference compared to the
current state is that one variable that belongs to the target assignment
is set to its target value.

makeMoveTowardTargetOperator
```
public LocalSearchOperator makeMoveTowardTargetOperator(IntVar[] variables,
                                                        long[] target_values)
```
Creates a local search operator that tries to move the assignment of some
variables toward a target. The target is given either as two vectors: a
vector of variables and a vector of associated target values. The two
vectors should be of the same length. This operator generates neighbors in
which the only difference compared to the current state is that one
variable that belongs to the given vector is set to its target value.

concatenateOperators
```
public LocalSearchOperator concatenateOperators(LocalSearchOperator[] ops)
```
Creates a local search operator which concatenates a vector of operators.
Each operator from the vector is called sequentially. By default, when a
neighbor is found the neighborhood exploration restarts from the last
active operator (the one which produced the neighbor).
This can be overridden by setting restart to true to force the exploration
to start from the first operator in the vector.

The default behavior can also be overridden using an evaluation callback
to set the order in which the operators are explored (the callback is
called in LocalSearchOperator::Start()). The first argument of the
callback is the index of the operator which produced the last move, the
second argument is the index of the operator to be evaluated. Ownership of
the callback is taken by ConcatenateOperators.

Example:

const int kPriorities = {10, 100, 10, 0};
int64_t Evaluate(int active_operator, int current_operator) {
return kPriorities[current_operator];
}

LocalSearchOperator* concat =
solver.ConcatenateOperators(operators,
NewPermanentCallback(&Evaluate));

The elements of the vector operators will be sorted by increasing priority
and explored in that order (tie-breaks are handled by keeping the relative
operator order in the vector). This would result in the following order:
operators[3], operators[0], operators[2], operators[1].

concatenateOperators

public LocalSearchOperator concatenateOperators(LocalSearchOperator[] ops,
                                                boolean restart)

concatenateOperators

public LocalSearchOperator concatenateOperators(LocalSearchOperator[] ops,
                                                IntIntToLongFunction evaluator)

randomConcatenateOperators
```
public LocalSearchOperator randomConcatenateOperators(LocalSearchOperator[] ops)
```
Randomized version of local search concatenator; calls a random operator
at each call to MakeNextNeighbor().

randomConcatenateOperators
```
public LocalSearchOperator randomConcatenateOperators(LocalSearchOperator[] ops,
                                                      int seed)
```
Randomized version of local search concatenator; calls a random operator
at each call to MakeNextNeighbor(). The provided seed is used to
initialize the random number generator.

MultiArmedBanditConcatenateOperators
```
public LocalSearchOperator MultiArmedBanditConcatenateOperators(LocalSearchOperator[] ops,
                                                                double memory_coefficient,
                                                                double exploration_coefficient,
                                                                boolean maximize)
```
Creates a local search operator which concatenates a vector of operators.
Uses Multi-Armed Bandit approach for choosing the next operator to use.
Sorts operators based on Upper Confidence Bound Algorithm which evaluates
each operator as sum of average improvement and exploration function.

Updates the order of operators when accepts a neighbor with objective
improvement.

makeNeighborhoodLimit
```
public LocalSearchOperator makeNeighborhoodLimit(LocalSearchOperator op,
                                                 long limit)
```
Creates a local search operator that wraps another local search
operator and limits the number of neighbors explored (i.e., calls
to MakeNextNeighbor from the current solution (between two calls
to Start()). When this limit is reached, MakeNextNeighbor()
returns false. The counter is cleared when Start() is called.

makeLocalSearchPhase
```
public DecisionBuilder makeLocalSearchPhase(Assignment assignment,
                                            LocalSearchPhaseParameters parameters)
```
Local Search decision builders factories.
Local search is used to improve a given solution. This initial solution
can be specified either by an Assignment or by a DecisionBulder, and the
corresponding variables, the initial solution being the first solution
found by the DecisionBuilder.
The LocalSearchPhaseParameters parameter holds the actual definition of
the local search phase:
- a local search operator used to explore the neighborhood of the current
solution,
- a decision builder to instantiate unbound variables once a neighbor has
been defined; in the case of LNS-based operators instantiates fragment
variables; search monitors can be added to this sub-search by wrapping
the decision builder with MakeSolveOnce.
- a search limit specifying how long local search looks for neighbors
before accepting one; the last neighbor is always taken and in the case
of a greedy search, this corresponds to the best local neighbor;
first-accept (which is the default behavior) can be modeled using a
solution found limit of 1,
- a vector of local search filters used to speed up the search by pruning
unfeasible neighbors.
Metaheuristics can be added by defining specialized search monitors;
currently down/up-hill climbing is available through OptimizeVar, as well
as Guided Local Search, Tabu Search and Simulated Annealing.

makeLocalSearchPhase

public DecisionBuilder makeLocalSearchPhase(IntVar[] vars,
                                            DecisionBuilder first_solution,
                                            LocalSearchPhaseParameters parameters)

makeLocalSearchPhase

public DecisionBuilder makeLocalSearchPhase(IntVar[] vars,
                                            DecisionBuilder first_solution,
                                            DecisionBuilder first_solution_sub_decision_builder,
                                            LocalSearchPhaseParameters parameters)

Variant with a sub_decison_builder specific to the first solution.

makeLocalSearchPhase

public DecisionBuilder makeLocalSearchPhase(SequenceVar[] vars,
                                            DecisionBuilder first_solution,
                                            LocalSearchPhaseParameters parameters)

RunUncheckedLocalSearch

public Assignment RunUncheckedLocalSearch(Assignment initial_solution,
                                          LocalSearchFilterManager filter_manager,
                                          LocalSearchOperator ls_operator,
                                          SearchMonitor[] monitors,
                                          RegularLimit limit,
                                          SWIGTYPE_p_absl__flat_hash_setT_operations_research__IntVar_p_t touched)

Experimental: runs a local search on the given initial solution, checking
the feasibility and the objective value of solutions using the filter
manager only (solutions are never restored in the CP world). Only greedy
descent is supported.

RunUncheckedLocalSearch

public Assignment RunUncheckedLocalSearch(Assignment initial_solution,
                                          LocalSearchFilterManager filter_manager,
                                          LocalSearchOperator ls_operator,
                                          SearchMonitor[] monitors,
                                          RegularLimit limit)

makeDefaultSolutionPool

public SolutionPool makeDefaultSolutionPool()

Solution Pool.

makeLocalSearchPhaseParameters

public LocalSearchPhaseParameters makeLocalSearchPhaseParameters(IntVar objective,
                                                                 LocalSearchOperator ls_operator,
                                                                 DecisionBuilder sub_decision_builder)

Local Search Phase Parameters

makeLocalSearchPhaseParameters

public LocalSearchPhaseParameters makeLocalSearchPhaseParameters(IntVar objective,
                                                                 LocalSearchOperator ls_operator,
                                                                 DecisionBuilder sub_decision_builder,
                                                                 RegularLimit limit)

makeLocalSearchPhaseParameters

public LocalSearchPhaseParameters makeLocalSearchPhaseParameters(IntVar objective,
                                                                 LocalSearchOperator ls_operator,
                                                                 DecisionBuilder sub_decision_builder,
                                                                 RegularLimit limit,
                                                                 LocalSearchFilterManager filter_manager)

makeLocalSearchPhaseParameters

public LocalSearchPhaseParameters makeLocalSearchPhaseParameters(IntVar objective,
                                                                 SolutionPool pool,
                                                                 LocalSearchOperator ls_operator,
                                                                 DecisionBuilder sub_decision_builder)

makeLocalSearchPhaseParameters

public LocalSearchPhaseParameters makeLocalSearchPhaseParameters(IntVar objective,
                                                                 SolutionPool pool,
                                                                 LocalSearchOperator ls_operator,
                                                                 DecisionBuilder sub_decision_builder,
                                                                 RegularLimit limit)

makeLocalSearchPhaseParameters

public LocalSearchPhaseParameters makeLocalSearchPhaseParameters(IntVar objective,
                                                                 SolutionPool pool,
                                                                 LocalSearchOperator ls_operator,
                                                                 DecisionBuilder sub_decision_builder,
                                                                 RegularLimit limit,
                                                                 LocalSearchFilterManager filter_manager)

MakeAcceptFilter

public LocalSearchFilter MakeAcceptFilter()

Local Search Filters

MakeRejectFilter

public LocalSearchFilter MakeRejectFilter()

makeVariableDomainFilter

public LocalSearchFilter makeVariableDomainFilter()

makeSumObjectiveFilter

public IntVarLocalSearchFilter makeSumObjectiveFilter(IntVar[] vars,
                                                      java.util.function.LongBinaryOperator values,
                                                      int filter_enum)

makeSumObjectiveFilter

public IntVarLocalSearchFilter makeSumObjectiveFilter(IntVar[] vars,
                                                      IntVar[] secondary_vars,
                                                      LongTernaryOperator values,
                                                      int filter_enum)

topPeriodicCheck
```
public void topPeriodicCheck()
```
Performs PeriodicCheck on the top-level search; for instance, can be
called from a nested solve to check top-level limits.

topProgressPercent
```
public int topProgressPercent()
```
Returns a percentage representing the propress of the search before
reaching the limits of the top-level search (can be called from a nested
solve).

pushState
```
public void pushState()
```
The PushState and PopState methods manipulates the states
of the reversible objects. They are visible only because they
are useful to write unitary tests.

popState
```
public void popState()
```

searchDepth
```
public int searchDepth()
```
Gets the search depth of the current active search. Returns -1 if
there is no active search opened.

searchLeftDepth
```
public int searchLeftDepth()
```
Gets the search left depth of the current active search. Returns -1 if
there is no active search opened.

solveDepth
```
public int solveDepth()
```
Gets the number of nested searches. It returns 0 outside search,
1 during the top level search, 2 or more in case of nested searches.

rand64
```
public long rand64(long size)
```
Returns a random value between 0 and 'size' - 1;

rand32
```
public int rand32(int size)
```
Returns a random value between 0 and 'size' - 1;

reSeed
```
public void reSeed(int seed)
```
Reseed the solver random generator.

exportProfilingOverview
```
public void exportProfilingOverview(java.lang.String filename)
```
Exports the profiling information in a human readable overview.
The parameter profile_level used to create the solver must be
set to true.

localSearchProfile
```
public java.lang.String localSearchProfile()
```
Returns local search profiling information in a human readable format.

currentlyInSolve
```
public boolean currentlyInSolve()
```
Returns true whether the current search has been
created using a Solve() call instead of a NewSearch one. It
returns false if the solver is not in search at all.

constraints
```
public int constraints()
```
Counts the number of constraints that have been added
to the solver before the search.

accept

public void accept(ModelVisitor visitor)

Accepts the given model visitor.

balancing_decision
```
public Decision balancing_decision()
```

clear_fail_intercept
```
public void clear_fail_intercept()
```
Internal

SetUseFastLocalSearch
```
public void SetUseFastLocalSearch(boolean use_fast_local_search)
```
enabled for metaheuristics.
Disables/enables fast local search.

UseFastLocalSearch
```
public boolean UseFastLocalSearch()
```
Returns true if fast local search is enabled.

hasName

public boolean hasName(PropagationBaseObject object)

Returns whether the object has been named or not.

registerDemon
```
public Demon registerDemon(Demon demon)
```
Adds a new demon and wraps it inside a DemonProfiler if necessary.

registerIntExpr
```
public IntExpr registerIntExpr(IntExpr expr)
```
Registers a new IntExpr and wraps it inside a TraceIntExpr if necessary.

registerIntVar
```
public IntVar registerIntVar(IntVar var)
```
Registers a new IntVar and wraps it inside a TraceIntVar if necessary.

registerIntervalVar
```
public IntervalVar registerIntervalVar(IntervalVar var)
```
Registers a new IntervalVar and wraps it inside a TraceIntervalVar
if necessary.

cache
```
public ModelCache cache()
```
Returns the cache of the model.

instrumentsDemons
```
public boolean instrumentsDemons()
```
Returns whether we are instrumenting demons.

isProfilingEnabled
```
public boolean isProfilingEnabled()
```
Returns whether we are profiling the solver.

isLocalSearchProfilingEnabled
```
public boolean isLocalSearchProfilingEnabled()
```
Returns whether we are profiling local search.

instrumentsVariables
```
public boolean instrumentsVariables()
```
Returns whether we are tracing variables.

nameAllVariables
```
public boolean nameAllVariables()
```
Returns whether all variables should be named.

model_name
```
public java.lang.String model_name()
```
Returns the name of the model.

getPropagationMonitor

public PropagationMonitor getPropagationMonitor()

Returns the propagation monitor.

addPropagationMonitor
```
public void addPropagationMonitor(PropagationMonitor monitor)
```
Adds the propagation monitor to the solver. This is called internally when
a propagation monitor is passed to the Solve() or NewSearch() method.

getLocalSearchMonitor

public LocalSearchMonitor getLocalSearchMonitor()

Returns the local search monitor.

addLocalSearchMonitor
```
public void addLocalSearchMonitor(LocalSearchMonitor monitor)
```
Adds the local search monitor to the solver. This is called internally
when a propagation monitor is passed to the Solve() or NewSearch() method.

GetOrCreateLocalSearchState
```
public Assignment GetOrCreateLocalSearchState()
```
Returns (or creates) an assignment representing the state of local search.

ClearLocalSearchState
```
public void ClearLocalSearchState()
```
Clears the local search state.

setTmpVector
```
public void setTmpVector(long[] value)
```
Unsafe temporary vector. It is used to avoid leaks in operations
that need storage and that may fail. See IntVar::SetValues() for
instance. It is not locked; do not use in a multi-threaded or reentrant
setup.

getTmpVector
```
public long[] getTmpVector()
```
Unsafe temporary vector. It is used to avoid leaks in operations
that need storage and that may fail. See IntVar::SetValues() for
instance. It is not locked; do not use in a multi-threaded or reentrant
setup.

castExpression
```
public IntExpr castExpression(IntVar var)
```
Internal. If the variables is the result of expr->Var(), this
method returns expr, nullptr otherwise.

finishCurrentSearch
```
public void finishCurrentSearch()
```
Tells the solver to kill or restart the current search.

restartCurrentSearch
```
public void restartCurrentSearch()
```

shouldFail
```
public void shouldFail()
```
These methods are only useful for the SWIG wrappers, which need a way
to externally cause the Solver to fail.

checkFail
```
public void checkFail()
```

MakeProfiledDecisionBuilderWrapper

public DecisionBuilder MakeProfiledDecisionBuilderWrapper(DecisionBuilder db)

Activates profiling on a decision builder.

Class Solver

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

swigCMemOwn

kNumPriorities

INT_VAR_DEFAULT

INT_VAR_SIMPLE

CHOOSE_FIRST_UNBOUND

CHOOSE_RANDOM

CHOOSE_MIN_SIZE_LOWEST_MIN

CHOOSE_MIN_SIZE_HIGHEST_MIN

CHOOSE_MIN_SIZE_LOWEST_MAX

CHOOSE_MIN_SIZE_HIGHEST_MAX

CHOOSE_LOWEST_MIN

CHOOSE_HIGHEST_MAX

CHOOSE_MIN_SIZE

CHOOSE_MAX_SIZE

CHOOSE_MAX_REGRET_ON_MIN

CHOOSE_PATH

INT_VALUE_DEFAULT

INT_VALUE_SIMPLE

ASSIGN_MIN_VALUE

ASSIGN_MAX_VALUE

ASSIGN_RANDOM_VALUE

ASSIGN_CENTER_VALUE

SPLIT_LOWER_HALF

SPLIT_UPPER_HALF

CHOOSE_STATIC_GLOBAL_BEST

CHOOSE_DYNAMIC_GLOBAL_BEST

SEQUENCE_DEFAULT

SEQUENCE_SIMPLE

CHOOSE_MIN_SLACK_RANK_FORWARD

CHOOSE_RANDOM_RANK_FORWARD

INTERVAL_DEFAULT

INTERVAL_SIMPLE

INTERVAL_SET_TIMES_FORWARD

INTERVAL_SET_TIMES_BACKWARD

TWOOPT

OROPT

RELOCATE

EXCHANGE

CROSS

MAKEACTIVE

MAKEINACTIVE

MAKECHAININACTIVE

SWAPACTIVE

SWAPACTIVECHAIN

EXTENDEDSWAPACTIVE

PATHLNS

FULLPATHLNS

UNACTIVELNS

INCREMENT

DECREMENT

SIMPLELNS

LK

TSPOPT

TSPLNS

GE

LE

EQ

DELAYED_PRIORITY

VAR_PRIORITY

NORMAL_PRIORITY

ENDS_AFTER_END

ENDS_AFTER_START

ENDS_AT_END

ENDS_AT_START

STARTS_AFTER_END

STARTS_AFTER_START

STARTS_AT_END

STARTS_AT_START

STAYS_IN_SYNC

ENDS_AFTER

ENDS_AT

ENDS_BEFORE

STARTS_AFTER