public class PropNotEqualXY_C extends Propagator<IntVar>
Propagator extension defining filtering algorithm for:
Variable objects and C a constant.
Propagator defines the propagate and awakeOnInst methods. The other ones
throw UnsupportedOperationException.
aCause, ACTIVE, constraint, LOGGER, NEW, PASSIVE, priority, reactToFineEvt, REIFIED, solver, vars| Constructor and Description |
|---|
PropNotEqualXY_C(IntVar[] vars,
int c) |
| Modifier and Type | Method and Description |
|---|---|
void |
duplicate(Solver solver,
gnu.trove.map.hash.THashMap<Object,Object> identitymap)
Duplicate the current propagator.
|
int |
getPropagationConditions(int vIdx)
Return the specific mask indicating the variable events on which this
Propagator object can react. |
ESat |
isEntailed()
Check wether
this is entailed according to the current state of its internal structure. |
void |
propagate(int evtmask)
Call the main filtering algorithm to apply to the
Domain of the Variable objects. |
void |
propagate(int varIdx,
int mask)
Incremental filtering algorithm defined within the
Propagator, called whenever the variable
of index idxVarInProp has changed. |
boolean |
why(RuleStore ruleStore,
IntVar var,
IEventType evt,
int value)
Add new rules to the rule store
|
addVariable, advise, arity, compareTo, contradiction, decNbPendingEvt, defineIn, dynPriority, flushPendingEvt, forcePropagate, getConstraint, getId, getNbPendingEvt, getNbVars, getPriority, getSolver, getVar, getVars, getVIndices, hashCode, incNbPendingEvt, isActive, isCompletelyInstantiated, isPassive, isReifiedAndSilent, isStateLess, reactToFineEvent, setActive, setPassive, setReifiedSilent, setReifiedTrue, setVIndices, toStringpublic PropNotEqualXY_C(IntVar[] vars, int c)
public int getPropagationConditions(int vIdx)
PropagatorPropagator object can react.getPropagationConditions in class Propagator<IntVar>vIdx - index of the variable within the propagatorREMOVE and/or INSTANTIATE
and/or DECUPP and/or INCLOWpublic void propagate(int evtmask)
throws ContradictionException
PropagatorDomain of the Variable objects.
It considers the current state of this objects to remove some values from domains and/or instantiate some variables.
Calling this method is done from 2 (and only 2) steps:
propagate in class Propagator<IntVar>evtmask - type of propagation event this must consider.ContradictionException - when a contradiction occurs, like domain wipe out or other incoherencies.public void propagate(int varIdx,
int mask)
throws ContradictionException
PropagatorPropagator, called whenever the variable
of index idxVarInProp has changed. This method calls a CUSTOM_PROPAGATION (coarse-grained) by default.
This method should be overridden if the argument reactToFineEvt is set to true in the constructor.
Otherwise, it executes propagate(PropagatorEventType.CUSTOM_PROPAGATION.getStrengthenedMask());
propagate in class Propagator<IntVar>varIdx - index of the variable var in thismask - type of eventContradictionException - if a contradiction occurspublic ESat isEntailed()
Propagatorthis is entailed according to the current state of its internal structure.
At least, should check the satisfaction of this (when all is instantiated).isEntailed in class Propagator<IntVar>public boolean why(RuleStore ruleStore, IntVar var, IEventType evt, int value)
ICausewhy in interface ICausewhy in class Propagator<IntVar>ruleStore - the rule storevar - the modified variableevt - the undergoing eventvalue - the value (for REMOVE only)public void duplicate(Solver solver, gnu.trove.map.hash.THashMap<Object,Object> identitymap)
Propagatorduplicate in class Propagator<IntVar>solver - the target solveridentitymap - a map to ensure uniqueness of objectsCopyright © 2015. All rights reserved.