org.chocosolver.solver.constraints.nary.cnf

Class SatConstraint

java.lang.Object

org.chocosolver.solver.constraints.Constraint

org.chocosolver.solver.constraints.nary.cnf.SatConstraint

All Implemented Interfaces:

Serializable

public class SatConstraint
extends Constraint

Since:

22 nov. 2010

Author:

Charles Prud'homme

See Also:

Serialized Form

Field Summary

Fields inherited from class org.chocosolver.solver.constraints.Constraint

name, propagators

Constructor Summary

Constructors

Constructor and Description
SatConstraint(Solver solver)

Method Summary

Methods

Modifier and Type	Method and Description
PropSat	getPropSat()
SatSolver	getSatSolver()
ESat	isSatisfied() Test if this Constraint object is satisfied, regarding its Propagators and its Variable current domains.

Methods inherited from class org.chocosolver.solver.constraints.Constraint

computeMaxPriority, duplicate, getName, getOpposite, getPropagator, getPropagators, isReified, makeOpposite, reif, reifyWith, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SatConstraint

public SatConstraint(Solver solver)

Method Detail

isSatisfied

public ESat isSatisfied()

Description copied from class: Constraint

Test if this Constraint object is satisfied, regarding its Propagators and its Variable current domains.

This method is called on each solution as a checker when assertions are enabled (-ea in VM parameters) It is also called for constraint reification (to state whether or not a constraint is satisfied)

The method calls entailment checks of this propagators

Overrides:

isSatisfied in class Constraint

Returns:

ESat.FALSE if the constraint cannot be satisfied (from domain consideration), ESat.TRUE if whatever future decisions are, the constraint will be satisfied for sure (without propagating domain modifications) ESat.UNDIFINED otherwise (more decisions/filtering must be made before concluding about constraint satisfaction)

getSatSolver

public SatSolver getSatSolver()

getPropSat

public PropSat getPropSat()