Class PropLocalConDis

  • All Implemented Interfaces:
    Comparable<Propagator>, ICause, Identity

    public class PropLocalConDis
    extends Propagator<IntVar>
    A propagator for constructive disjunction, with local deductions. The propagator propagates each constraint, in sequence, and maintains the domain union of each modified variable. This propagator declares no propagation engine temporarily.

    Project: choco.

    Charles Prud'homme, Jean-Guillaume Fages
    • Constructor Detail

      • PropLocalConDis

        public PropLocalConDis​(IntVar[] vars,
                               Propagator<IntVar>[][] propagators)
        A propagator to deal with constructive disjunction
        propagators - matrix of propagators, columns are in disjunction
    • Method Detail

      • propagate

        public void propagate​(int evtmask)
                       throws ContradictionException
        Description copied from class: Propagator
        Call the main filtering algorithm to apply to the Domain 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:
        - at the initial propagation step,
        - when involved in a reified constraint.
        It should initialized the internal data structure and apply filtering algorithm from scratch.
        Specified by:
        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.
      • isEntailed

        public ESat isEntailed()
        Description copied from class: Propagator
        Check wether this is entailed according to the current state of its internal structure. At least, should check the satisfaction of this (when all is instantiated).
        Specified by:
        isEntailed in class Propagator<IntVar>
        ESat.TRUE if entailed, ESat.FALSE if not entailed, ESat.UNDEFINED if unknown