minicp.engine.constraints

Class IsEqual

java.lang.Object

minicp.engine.core.AbstractConstraint

minicp.engine.constraints.IsEqual

All Implemented Interfaces:

Constraint

public class IsEqual
extends AbstractConstraint

Reified equality constraint

See Also:

Factory.isEqual(IntVar, int)

Constructor Summary

Constructors

Constructor and Description
IsEqual(BoolVar b, IntVar x, int c) Returns a boolean variable representing whether one variable is equal to the given constant.

Method Summary

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

Methods inherited from class minicp.engine.core.AbstractConstraint

getSolver, isActive, isScheduled, setActive, setScheduled

Methods inherited from class java.lang.Object

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

Constructor Detail

IsEqual

public IsEqual(BoolVar b,
               IntVar x,
               int c)

Returns a boolean variable representing whether one variable is equal to the given constant.

Parameters:

x - the variable

c - the constant

b - the boolean variable that is set to true if and only if x takes the value c

See Also:

Factory.isEqual(IntVar, int)

Method Detail

post

public void post()

Description copied from interface: Constraint

Initializes the constraint when it is posted to the solver.

Specified by:

post in interface Constraint

Overrides:

post in class AbstractConstraint

propagate

public void propagate()

Description copied from interface: Constraint

Propagates the constraint.

Specified by:

propagate in interface Constraint

Overrides:

propagate in class AbstractConstraint