com.google.ortools.constraintsolver

Class IntExpr

java.lang.Object

com.google.ortools.constraintsolver.BaseObject

com.google.ortools.constraintsolver.PropagationBaseObject

com.google.ortools.constraintsolver.IntExpr

Direct Known Subclasses:

BaseIntExpr, IntVar

public class IntExpr
extends PropagationBaseObject

The class IntExpr is the base of all integer expressions in
constraint programming.
It contains the basic protocol for an expression:
- setting and modifying its bound
- querying if it is bound
- listening to events modifying its bounds
- casting it into a variable (instance of IntVar)

Field Summary

Fields inherited from class com.google.ortools.constraintsolver.BaseObject

swigCMemOwn

Constructor Summary

Constructors

Constructor and Description
IntExpr(long cPtr, boolean cMemoryOwn)

Method Summary

Modifier and Type	Method and Description
void	accept(ModelVisitor visitor) Accepts the given visitor.
boolean	bound() Returns true if the min and the max of the expression are equal.
void	delete()
protected void	finalize()
static long	getCPtr(IntExpr obj)
boolean	isVar() Returns true if the expression is indeed a variable.
long	max()
long	min()
void	range(long[] l, long[] u) By default calls Min() and Max(), but can be redefined when Min and Max code can be factorized.
void	setMax(long m)
void	setMin(long m)
void	setRange(long l, long u) This method sets both the min and the max of the expression.
void	setValue(long v) This method sets the value of the expression.
static long	swigRelease(IntExpr obj)
IntVar	var() Creates a variable from the expression.
IntVar	varWithName(java.lang.String name) Creates a variable from the expression and set the name of the resulting var.
void	whenRange(Demon d) Attach a demon that will watch the min or the max of the expression.
void	whenRange(java.lang.Runnable closure) Attach a demon that will watch the min or the max of the expression.

Methods inherited from class com.google.ortools.constraintsolver.PropagationBaseObject

baseName, enqueueDelayedDemon, enqueueVar, freezeQueue, getCPtr, hasName, name, reset_action_on_fail, set_variable_to_clean_on_fail, setName, solver, swigRelease, toString, unfreezeQueue

Methods inherited from class com.google.ortools.constraintsolver.BaseObject

getCPtr, swigRelease

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IntExpr

public IntExpr(long cPtr,
               boolean cMemoryOwn)

Method Detail

getCPtr

public static long getCPtr(IntExpr obj)

swigRelease

public static long swigRelease(IntExpr obj)

finalize

protected void finalize()

Overrides:

finalize in class PropagationBaseObject

delete

public void delete()

Overrides:

delete in class PropagationBaseObject

min

public long min()

setMin

public void setMin(long m)

max

public long max()

setMax

public void setMax(long m)

range

public void range(long[] l,
                  long[] u)

By default calls Min() and Max(), but can be redefined when Min and Max
code can be factorized.

setRange

public void setRange(long l,
                     long u)

This method sets both the min and the max of the expression.

setValue

public void setValue(long v)

This method sets the value of the expression.

bound

public boolean bound()

Returns true if the min and the max of the expression are equal.

isVar

public boolean isVar()

Returns true if the expression is indeed a variable.

var

public IntVar var()

Creates a variable from the expression.

varWithName

public IntVar varWithName(java.lang.String name)

Creates a variable from the expression and set the name of the
resulting var. If the expression is already a variable, then it
will set the name of the expression, possibly overwriting it.
This is just a shortcut to Var() followed by set_name().

whenRange

public void whenRange(Demon d)

Attach a demon that will watch the min or the max of the expression.

whenRange

public void whenRange(java.lang.Runnable closure)

Attach a demon that will watch the min or the max of the expression.

accept

public void accept(ModelVisitor visitor)

Accepts the given visitor.