org.clafer.choco.constraint.propagator

Class PropSetSum

java.lang.Object

solver.constraints.Propagator<solver.variables.Variable>

org.clafer.choco.constraint.propagator.PropSetSum

All Implemented Interfaces:

Serializable, Comparable<solver.constraints.Propagator>, solver.ICause, solver.Identity

public class PropSetSum
extends solver.constraints.Propagator<solver.variables.Variable>

Sums a set and |set| &le n. This implementation assumes that the envelope and kernel are sorted, undefined behaviour otherwise.

Author:

jimmy

See Also:

Serialized Form

Field Summary

Fields inherited from class solver.constraints.Propagator

aCause, ACTIVE, coarseERcalls, constraint, environment, eventmasks, fails, fineERcalls, LOGGER, NEW, PASSIVE, priority, reactToFineEvt, REIFIED, solver, vars

Constructor Summary

Constructors

Constructor and Description
PropSetSum(solver.variables.SetVar set, solver.variables.IntVar setCard, solver.variables.IntVar sum)

Method Summary

Methods

Modifier and Type	Method and Description
int	getPropagationConditions(int vIdx)
util.ESat	isEntailed()
void	propagate(int evtmask)
void	propagate(int idxVarInProp, int mask)
String	toString()

Methods inherited from class solver.constraints.Propagator

addVariable, advise, arity, clearMask, compareTo, contradiction, decNbPendingEvt, defineIn, dynPriority, explain, flushPendingEvt, forcePropagate, getConstraint, getId, getMask, getNbPendingEvt, getNbVars, getPriority, getSolver, getVar, getVars, getVIndices, hashCode, incNbPendingEvt, isActive, isCompletelyInstantiated, isPassive, isReifiedAndSilent, isStateLess, setActive, setPassive, setReifiedSilent, setReifiedTrue, setVIndices, updateMask

Methods inherited from class java.lang.Object

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

Constructor Detail

PropSetSum

public PropSetSum(solver.variables.SetVar set,
          solver.variables.IntVar setCard,
          solver.variables.IntVar sum)

Method Detail

getPropagationConditions

public int getPropagationConditions(int vIdx)

Specified by:

getPropagationConditions in class solver.constraints.Propagator<solver.variables.Variable>

propagate

public void propagate(int evtmask)
               throws solver.exception.ContradictionException

Specified by:

propagate in class solver.constraints.Propagator<solver.variables.Variable>

Throws:

solver.exception.ContradictionException

propagate

public void propagate(int idxVarInProp,
             int mask)
               throws solver.exception.ContradictionException

Specified by:

propagate in class solver.constraints.Propagator<solver.variables.Variable>

Throws:

solver.exception.ContradictionException

isEntailed

public util.ESat isEntailed()

Specified by:

isEntailed in class solver.constraints.Propagator<solver.variables.Variable>

toString

public String toString()

Overrides:

toString in class Object