Class FilteringMoveSelector
- java.lang.Object
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- org.optaplanner.core.impl.heuristic.selector.AbstractSelector
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- org.optaplanner.core.impl.heuristic.selector.move.AbstractMoveSelector
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- org.optaplanner.core.impl.heuristic.selector.move.decorator.FilteringMoveSelector
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- All Implemented Interfaces:
Iterable<Move>
,EventListener
,IterableSelector<Move>
,MoveSelector
,Selector
,PhaseLifecycleListener
,SolverLifecycleListener
public class FilteringMoveSelector extends AbstractMoveSelector
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Field Summary
Fields Modifier and Type Field Description protected boolean
bailOutEnabled
protected MoveSelector
childMoveSelector
protected List<SelectionFilter>
filterList
protected ScoreDirector
scoreDirector
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Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
logger, phaseLifecycleSupport, workingRandom
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Constructor Summary
Constructors Constructor Description FilteringMoveSelector(MoveSelector childMoveSelector, List<SelectionFilter> filterList)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected boolean
accept(ScoreDirector scoreDirector, Move move)
protected long
determineBailOutSize()
long
getSize()
A random JITSelector
withSelector.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 inSelectionProbabilityWeightFactory
.boolean
isCountable()
If false, thenSelector.isNeverEnding()
is true.boolean
isNeverEnding()
Is true ifSelector.isCountable()
is false or if this selector is in random order (for most cases).Iterator<Move>
iterator()
void
phaseEnded(AbstractPhaseScope phaseScope)
void
phaseStarted(AbstractPhaseScope phaseScope)
String
toString()
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Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
getCacheType, solvingEnded, solvingStarted, stepEnded, stepStarted
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface java.lang.Iterable
forEach, spliterator
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Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.move.MoveSelector
supportsPhaseAndSolverCaching
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Methods inherited from interface org.optaplanner.core.impl.phase.event.PhaseLifecycleListener
stepEnded, stepStarted
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Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.Selector
getCacheType
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Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener
solvingEnded, solvingStarted
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Field Detail
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childMoveSelector
protected final MoveSelector childMoveSelector
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filterList
protected final List<SelectionFilter> filterList
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bailOutEnabled
protected final boolean bailOutEnabled
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scoreDirector
protected ScoreDirector scoreDirector
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Constructor Detail
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FilteringMoveSelector
public FilteringMoveSelector(MoveSelector childMoveSelector, List<SelectionFilter> filterList)
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Method Detail
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phaseStarted
public void phaseStarted(AbstractPhaseScope phaseScope)
- Specified by:
phaseStarted
in interfacePhaseLifecycleListener
- Overrides:
phaseStarted
in classAbstractSelector
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phaseEnded
public void phaseEnded(AbstractPhaseScope phaseScope)
- Specified by:
phaseEnded
in interfacePhaseLifecycleListener
- Overrides:
phaseEnded
in classAbstractSelector
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isCountable
public boolean isCountable()
Description copied from interface:Selector
If false, thenSelector.isNeverEnding()
is true.- Returns:
- true if all the
ValueRange
s are countable (for example a double value range between 1.2 and 1.4 is not countable)
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isNeverEnding
public boolean isNeverEnding()
Description copied from interface:Selector
Is true ifSelector.isCountable()
is false 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 theIterator
created byIterable.iterator()
never returns false (except when it's empty).
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getSize
public long getSize()
Description copied from interface:IterableSelector
A random JITSelector
withSelector.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 inSelectionProbabilityWeightFactory
.- Returns:
- the approximate number of elements generated by this
Selector
, always>= 0
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determineBailOutSize
protected long determineBailOutSize()
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accept
protected boolean accept(ScoreDirector scoreDirector, Move move)
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