org.drools.planner.core.heuristic.selector.move.decorator
Class FilteringMoveSelector

java.lang.Object
  org.drools.planner.core.heuristic.selector.AbstractSelector
      org.drools.planner.core.heuristic.selector.move.AbstractMoveSelector
          org.drools.planner.core.heuristic.selector.move.decorator.FilteringMoveSelector

All Implemented Interfaces:

Iterable<Move>, EventListener, MoveSelector, Selector, SolverPhaseLifecycleListener, SolverLifecycleListener

public class FilteringMoveSelector
extends AbstractMoveSelector

Field Summary

protected boolean	bailOutEnabled
protected MoveSelector	childMoveSelector
protected List<SelectionFilter>	moveFilterList
protected ScoreDirector	scoreDirector

Fields inherited from class org.drools.planner.core.heuristic.selector.AbstractSelector

logger, solverPhaseLifecycleSupport, workingRandom

Constructor Summary

FilteringMoveSelector(MoveSelector childMoveSelector, List<SelectionFilter> moveFilterList)

Method Summary

protected long	determineBailOutSize()
long	getSize() A random JIT Selector with Selector.isNeverEnding() true should return a size as if it would be able to return each distinct element only once, because the size can be used in SelectionProbabilityWeightFactory.
boolean	isContinuous() If true, then Selector.isNeverEnding() is also true.
boolean	isNeverEnding() Is true if Selector.isContinuous() is true or if this selector is in random order (for most cases).
Iterator<Move>	iterator()
void	phaseEnded(AbstractSolverPhaseScope solverPhaseScope)
void	phaseStarted(AbstractSolverPhaseScope solverPhaseScope)
String	toString()

Methods inherited from class org.drools.planner.core.heuristic.selector.AbstractSelector

solvingEnded, solvingStarted, stepEnded, stepStarted

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.drools.planner.core.phase.event.SolverPhaseLifecycleListener

stepEnded, stepStarted

Methods inherited from interface org.drools.planner.core.solver.event.SolverLifecycleListener

solvingEnded, solvingStarted

Field Detail

childMoveSelector

protected final MoveSelector childMoveSelector

moveFilterList

protected final List<SelectionFilter> moveFilterList

bailOutEnabled

protected final boolean bailOutEnabled

scoreDirector

protected ScoreDirector scoreDirector

Constructor Detail

FilteringMoveSelector

public FilteringMoveSelector(MoveSelector childMoveSelector,
                             List<SelectionFilter> moveFilterList)

Method Detail

phaseStarted

public void phaseStarted(AbstractSolverPhaseScope solverPhaseScope)

Specified by:

phaseStarted in interface SolverPhaseLifecycleListener

Overrides:

phaseStarted in class AbstractSelector

phaseEnded

public void phaseEnded(AbstractSolverPhaseScope solverPhaseScope)

Specified by:

phaseEnded in interface SolverPhaseLifecycleListener

Overrides:

phaseEnded in class AbstractSelector

isContinuous

public boolean isContinuous()

Description copied from interface: Selector

If true, then Selector.isNeverEnding() is also true.

Returns:

true if any of the value ranges are continuous (as in for example every double value between 1.2 and 1.4)

isNeverEnding

public boolean isNeverEnding()

Description copied from interface: Selector

Is true if Selector.isContinuous() is true or if this selector is in random order (for most cases). Is never true when this selector is in shuffled order (which is less scalable but more exact).

Returns:

true if the Iterator.hasNext() of the Iterator created by Iterable.iterator() never returns false.

getSize

public long getSize()

Description copied from interface: Selector

A random JIT Selector with Selector.isNeverEnding() true should return a size as if it would be able to return each distinct element only once, because the size can be used in SelectionProbabilityWeightFactory.

Returns:

the approximate number of elements generated by this Selector, always >= 0

iterator

public Iterator<Move> iterator()

determineBailOutSize

protected long determineBailOutSize()

toString

public String toString()

Overrides:

toString in class Object