choco.integer.constraints
Class InverseChanneling

java.lang.Object
  choco.AbstractEntity
      choco.AbstractConstraint
          choco.integer.constraints.AbstractIntConstraint
              choco.integer.constraints.AbstractLargeIntConstraint
                  choco.integer.constraints.InverseChanneling

All Implemented Interfaces:

Constraint, Entity, IntConstraint, IntVarEventListener, VarEventListener, Propagator, java.lang.Cloneable, java.util.EventListener

public class InverseChanneling
extends AbstractLargeIntConstraint

Field Summary

protected int

n

Fields inherited from class choco.integer.constraints.AbstractLargeIntConstraint

cIndices, cste, vars

Fields inherited from class choco.integer.constraints.AbstractIntConstraint

logger

Fields inherited from class choco.AbstractConstraint

active, constAwakeEvent, hook, priority

Fields inherited from class choco.AbstractEntity

problem

Constructor Summary

InverseChanneling(IntDomainVar[] allVars, int n)
link x and y so that x[i] = j <=> y[j] = i It is used to maintain both model on permutation problems

Method Summary

void	awakeOnInf(int idx) Default propagation on improved lower bound: propagation on domain revision.
void	awakeOnInst(int idx) Default propagation on instantiation: full constraint re-propagation.
void	awakeOnRem(int idx, int x) Default propagation on one value removal: propagation on domain revision.
void	awakeOnSup(int idx) Default propagation on improved upper bound: propagation on domain revision.
boolean	isSatisfied() Semantic: Testing if the constraint is satisfied.
void	propagate() Propagates the constraint awake events.

Methods inherited from class choco.integer.constraints.AbstractLargeIntConstraint

assignIndices, clone, getConstraintIdx, getIntVar, getNbVars, getVar, isCompletelyInstantiated, setConstraintIndex, setVar

Methods inherited from class choco.integer.constraints.AbstractIntConstraint

awakeOnBounds, awakeOnRemovals, getSelfIndex, isConsistent

Methods inherited from class choco.AbstractConstraint

addListener, awake, awakeOnVar, connectVar, constAwake, delete, fail, getEvent, getPlugIn, getPriority, getProblem, getVarIdxInOpposite, isActive, isEntailed, isEquivalentTo, opposite, setActive, setEntailed, setPassive, setPlugIn, substituteVar

Methods inherited from class choco.AbstractEntity

pretty

Methods inherited from class java.lang.Object

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

Methods inherited from interface choco.Propagator

awake, awakeOnVar, constAwake, delete, getEvent, getPlugIn, getPriority, isEntailed

Methods inherited from interface choco.prop.VarEventListener

addListener, isActive, setActive, setPassive

Methods inherited from interface choco.prop.VarEventListener

addListener, isActive, setActive, setPassive

Field Detail

n

protected int n

Constructor Detail

InverseChanneling

public InverseChanneling(IntDomainVar[] allVars,
                         int n)

link x and y so that x[i] = j <=> y[j] = i It is used to maintain both model on permutation problems

Method Detail

propagate

public void propagate()
               throws ContradictionException

Description copied from class: AbstractLargeIntConstraint

Propagates the constraint awake events.

Specified by:

propagate in interface Propagator

Overrides:

propagate in class AbstractLargeIntConstraint

Throws:

ContradictionException

awakeOnInf

public void awakeOnInf(int idx)
                throws ContradictionException

Description copied from class: AbstractIntConstraint

Default propagation on improved lower bound: propagation on domain revision.

Specified by:

awakeOnInf in interface IntVarEventListener

Overrides:

awakeOnInf in class AbstractIntConstraint

Throws:

ContradictionException

awakeOnSup

public void awakeOnSup(int idx)
                throws ContradictionException

Description copied from class: AbstractIntConstraint

Default propagation on improved upper bound: propagation on domain revision.

Specified by:

awakeOnSup in interface IntVarEventListener

Overrides:

awakeOnSup in class AbstractIntConstraint

Throws:

ContradictionException

awakeOnInst

public void awakeOnInst(int idx)
                 throws ContradictionException

Description copied from class: AbstractIntConstraint

Default propagation on instantiation: full constraint re-propagation.

Specified by:

awakeOnInst in interface IntVarEventListener

Overrides:

awakeOnInst in class AbstractIntConstraint

Throws:

ContradictionException

awakeOnRem

public void awakeOnRem(int idx,
                       int x)
                throws ContradictionException

Description copied from class: AbstractIntConstraint

Default propagation on one value removal: propagation on domain revision.

Specified by:

awakeOnRem in interface IntVarEventListener

Overrides:

awakeOnRem in class AbstractIntConstraint

Throws:

ContradictionException

isSatisfied

public boolean isSatisfied()

Description copied from interface: Constraint

Semantic: Testing if the constraint is satisfied. Note that all variables involved in the constraint must be instantiated when this method is called.