com.google.ortools.constraintsolver.BaseLns Class Reference

Inheritance diagram for com.google.ortools.constraintsolver.BaseLns:

Public Member Functions
synchronized void	delete ()
void	swigReleaseOwnership ()
void	swigTakeOwnership ()
	BaseLns (IntVar[] vars)
void	initFragments ()
boolean	nextFragment ()
void	appendToFragment (int index)
int	fragmentSize ()
boolean	HasFragments ()
Public Member Functions inherited from com.google.ortools.constraintsolver.IntVarLocalSearchOperator
	IntVarLocalSearchOperator (IntVar[] vars, boolean keep_inverse_values)
	IntVarLocalSearchOperator (IntVar[] vars)
boolean	HoldsDelta ()
void	start (Assignment assignment)
boolean	isIncremental ()
int	size ()
long	value (long index)
IntVar	var (long index)
boolean	SkipUnchanged (int index)
long	oldValue (long index)
long	PrevValue (long index)
void	setValue (long index, long value)
boolean	activated (long index)
void	activate (long index)
void	deactivate (long index)
boolean	ApplyChanges (Assignment delta, Assignment deltadelta)
void	RevertChanges (boolean change_was_incremental)
void	addVars (IntVar[] vars)
void	onStart ()
Public Member Functions inherited from com.google.ortools.constraintsolver.LocalSearchOperator
	LocalSearchOperator ()
boolean	nextNeighbor (Assignment delta, Assignment deltadelta)
void	reset ()
Public Member Functions inherited from com.google.ortools.constraintsolver.BaseObject
	BaseObject ()
String	toString ()

Protected Member Functions
	BaseLns (long cPtr, boolean cMemoryOwn)
void	finalize ()
void	swigDirectorDisconnect ()
Protected Member Functions inherited from com.google.ortools.constraintsolver.IntVarLocalSearchOperator
	IntVarLocalSearchOperator (long cPtr, boolean cMemoryOwn)
boolean	oneNeighbor ()
Protected Member Functions inherited from com.google.ortools.constraintsolver.LocalSearchOperator
	LocalSearchOperator (long cPtr, boolean cMemoryOwn)
Protected Member Functions inherited from com.google.ortools.constraintsolver.BaseObject
	BaseObject (long cPtr, boolean cMemoryOwn)

Static Protected Member Functions
static long	getCPtr (BaseLns obj)
static long	swigRelease (BaseLns obj)
Static Protected Member Functions inherited from com.google.ortools.constraintsolver.IntVarLocalSearchOperator
static long	getCPtr (IntVarLocalSearchOperator obj)
static long	swigRelease (IntVarLocalSearchOperator obj)
Static Protected Member Functions inherited from com.google.ortools.constraintsolver.LocalSearchOperator
static long	getCPtr (LocalSearchOperator obj)
static long	swigRelease (LocalSearchOperator obj)
Static Protected Member Functions inherited from com.google.ortools.constraintsolver.BaseObject
static long	getCPtr (BaseObject obj)
static long	swigRelease (BaseObject obj)

Additional Inherited Members
Protected Attributes inherited from com.google.ortools.constraintsolver.BaseObject
transient boolean	swigCMemOwn

Detailed Description

This is the base class for building an Lns operator. An Lns fragment is a
collection of variables which will be relaxed. Fragments are built with
NextFragment(), which returns false if there are no more fragments to build.
Optionally one can override InitFragments, which is called from
LocalSearchOperator::Start to initialize fragment data.

Here's a sample relaxing one variable at a time:

class OneVarLns : public BaseLns {
public:
OneVarLns(const std::vector<IntVar*>& vars) : BaseLns(vars), index_(0) {}
virtual ~OneVarLns() {}
virtual void InitFragments() { index_ = 0; }
virtual bool NextFragment() {
const int size = Size();
if (index_ < size) {
AppendToFragment(index_);
++index_;
return true;
} else {
return false;
}
}

private:
int index_;
};

Definition at line 40 of file BaseLns.java.

Constructor & Destructor Documentation

BaseLns() [1/2]

com.google.ortools.constraintsolver.BaseLns.BaseLns ( long cPtr, boolean cMemoryOwn )

protected

Definition at line 43 of file BaseLns.java.

BaseLns() [2/2]

com.google.ortools.constraintsolver.BaseLns.BaseLns

(

IntVar[]

vars

)

Definition at line 95 of file BaseLns.java.

Member Function Documentation

appendToFragment()

void com.google.ortools.constraintsolver.BaseLns.appendToFragment

(

int

index

)

Definition at line 108 of file BaseLns.java.

delete()

synchronized void com.google.ortools.constraintsolver.BaseLns.delete

(

)

Reimplemented from com.google.ortools.constraintsolver.IntVarLocalSearchOperator.

Definition at line 69 of file BaseLns.java.

finalize()

void com.google.ortools.constraintsolver.BaseLns.finalize ( )

protected

Reimplemented from com.google.ortools.constraintsolver.IntVarLocalSearchOperator.

Definition at line 65 of file BaseLns.java.

fragmentSize()

int com.google.ortools.constraintsolver.BaseLns.fragmentSize

(

)

Definition at line 112 of file BaseLns.java.

getCPtr()

static long com.google.ortools.constraintsolver.BaseLns.getCPtr ( BaseLns obj )

staticprotected

Definition at line 48 of file BaseLns.java.

HasFragments()

boolean com.google.ortools.constraintsolver.BaseLns.HasFragments

(

)

Reimplemented from com.google.ortools.constraintsolver.LocalSearchOperator.

Definition at line 116 of file BaseLns.java.

initFragments()

void com.google.ortools.constraintsolver.BaseLns.initFragments

(

)

Definition at line 100 of file BaseLns.java.

nextFragment()

boolean com.google.ortools.constraintsolver.BaseLns.nextFragment

(

)

Definition at line 104 of file BaseLns.java.

swigDirectorDisconnect()

void com.google.ortools.constraintsolver.BaseLns.swigDirectorDisconnect ( )

protected

Reimplemented from com.google.ortools.constraintsolver.IntVarLocalSearchOperator.

Definition at line 80 of file BaseLns.java.

swigRelease()

static long com.google.ortools.constraintsolver.BaseLns.swigRelease ( BaseLns obj )

staticprotected

Definition at line 52 of file BaseLns.java.

swigReleaseOwnership()

void com.google.ortools.constraintsolver.BaseLns.swigReleaseOwnership

(

)

Reimplemented from com.google.ortools.constraintsolver.IntVarLocalSearchOperator.

Definition at line 85 of file BaseLns.java.

swigTakeOwnership()

void com.google.ortools.constraintsolver.BaseLns.swigTakeOwnership

(

)

Reimplemented from com.google.ortools.constraintsolver.IntVarLocalSearchOperator.

Definition at line 90 of file BaseLns.java.

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The documentation for this class was generated from the following file:

• build/java/ortools-java/src/main/java/com/google/ortools/constraintsolver/BaseLns.java