Module org.maxicp

Package org.maxicp.cp.engine.constraints

Class IsEqualVar

java.lang.Object

org.maxicp.cp.engine.core.AbstractCPConstraint

org.maxicp.cp.engine.constraints.IsEqualVar

All Implemented Interfaces:

CPConstraint, ConcreteConstraint<ConcreteCPModel>

public class IsEqualVar
extends AbstractCPConstraint

Reified equality constraint

See Also:

• CPFactory.isEq(CPIntVar, CPIntVar)

Constructor Summary

Constructors

Constructor	Description
IsEqualVar(CPBoolVar b, CPIntVar x, CPIntVar y)	Returns a boolean variable representing whether two variables are equal

Method Summary

Modifier and Type	Method	Description
void	post()	Initializes the constraint when it is posted to the solver.
void	propagate()	Propagates the constraint.

Methods inherited from class org.maxicp.cp.engine.core.AbstractCPConstraint

getSolver, isActive, isScheduled, priority, registerDelta, setActive, setScheduled, updateDeltas

Methods inherited from class java.lang.Object

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

Constructor Details

IsEqualVar

public IsEqualVar(CPBoolVar b,
 CPIntVar x,
 CPIntVar y)

Returns a boolean variable representing whether two variables are equal

Parameters:

b - the boolean variable that is set to true if and only if x == y

x - first variable

y - second variable

Method Details

post

public void post()

Description copied from interface: CPConstraint

Initializes the constraint when it is posted to the solver.

Specified by:

post in interface CPConstraint

Overrides:

post in class AbstractCPConstraint

propagate

public void propagate()

Description copied from interface: CPConstraint

Propagates the constraint.

Specified by:

propagate in interface CPConstraint

Overrides:

propagate in class AbstractCPConstraint