javax.constraints.extra
Class ConstraintTraceVar

java.lang.Object
  javax.constraints.impl.CommonBase
      javax.constraints.impl.AbstractConstraint
          javax.constraints.extra.ConstraintTraceVar

All Implemented Interfaces:

Constraint

public class ConstraintTraceVar
extends AbstractConstraint

This constraint allows a user to trace a variable logging a given event every time when it occurs

Constructor Summary

ConstraintTraceVar(Var var, PropagationEvent event)

Method Summary

VarBool	asBool() This method returns a Var variable that is equal 1 if the constraint is satisfied and equals 0 if it is violated.
void	post() This methods subscribes MyPropagator to the "event" for the variable "var"

Methods inherited from class javax.constraints.impl.AbstractConstraint

and, implies, negation, or, post

Methods inherited from class javax.constraints.impl.CommonBase

getImpl, getName, getObject, getProblem, setImpl, setName, setObject

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.constraints.Constraint

getImpl, getName, getObject, getProblem, setImpl, setName, setObject

Constructor Detail

ConstraintTraceVar

public ConstraintTraceVar(Var var,
                          PropagationEvent event)

Method Detail

asBool

public VarBool asBool()

Description copied from class: AbstractConstraint

This method returns a Var variable that is equal 1 if the constraint is satisfied and equals 0 if it is violated. Each constraint that participates in logical expressions should implement this method.

Specified by:

asBool in interface Constraint

Overrides:

asBool in class AbstractConstraint

Returns:

a VarBool variable that is equal to 1

post

public void post()

This methods subscribes MyPropagator to the "event" for the variable "var"

Specified by:

post in interface Constraint

Overrides:

post in class AbstractConstraint