Class UnionMoveSelector<Solution_>
java.lang.Object
org.optaplanner.core.impl.heuristic.selector.AbstractSelector<Solution_>
org.optaplanner.core.impl.heuristic.selector.move.AbstractMoveSelector<Solution_>
org.optaplanner.core.impl.heuristic.selector.move.composite.CompositeMoveSelector<Solution_>
org.optaplanner.core.impl.heuristic.selector.move.composite.UnionMoveSelector<Solution_>
- All Implemented Interfaces:
Iterable<Move<Solution_>>
,EventListener
,IterableSelector<Solution_,
,Move<Solution_>> MoveSelector<Solution_>
,Selector<Solution_>
,PhaseLifecycleListener<Solution_>
,SolverLifecycleListener<Solution_>
A
CompositeMoveSelector
that unions 2 or more MoveSelector
s.
For example: a union of {A, B, C} and {X, Y} will result in {A, B, C, X, Y}.
Warning: there is no duplicated Move
check, so union of {A, B, C} and {B, D} will result in {A, B, C, B, D}.
- See Also:
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Field Summary
Modifier and TypeFieldDescriptionprotected ScoreDirector<Solution_>
protected final SelectionProbabilityWeightFactory<Solution_,
MoveSelector<Solution_>> Fields inherited from class org.optaplanner.core.impl.heuristic.selector.move.composite.CompositeMoveSelector
childMoveSelectorList, randomSelection
Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
logger, phaseLifecycleSupport, workingRandom
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Constructor Summary
ConstructorDescriptionUnionMoveSelector
(List<MoveSelector<Solution_>> childMoveSelectorList, boolean randomSelection) UnionMoveSelector
(List<MoveSelector<Solution_>> childMoveSelectorList, boolean randomSelection, SelectionProbabilityWeightFactory<Solution_, MoveSelector<Solution_>> selectorProbabilityWeightFactory) -
Method Summary
Modifier and TypeMethodDescriptionlong
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
Is true ifSelector.isCountable()
is false or if this selector is in random order (for most cases).iterator()
void
stepEnded
(AbstractStepScope<Solution_> stepScope) void
stepStarted
(AbstractStepScope<Solution_> stepScope) toString()
Methods inherited from class org.optaplanner.core.impl.heuristic.selector.move.composite.CompositeMoveSelector
getChildMoveSelectorList, isCountable, supportsPhaseAndSolverCaching
Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
getCacheType, phaseEnded, phaseStarted, solvingEnded, solvingStarted
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.IterableSelector
spliterator
Methods inherited from interface org.optaplanner.core.impl.phase.event.PhaseLifecycleListener
phaseEnded, phaseStarted
Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.Selector
getCacheType
Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener
solvingEnded, solvingError, solvingStarted
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Field Details
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selectorProbabilityWeightFactory
protected final SelectionProbabilityWeightFactory<Solution_,MoveSelector<Solution_>> selectorProbabilityWeightFactory -
scoreDirector
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Constructor Details
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UnionMoveSelector
public UnionMoveSelector(List<MoveSelector<Solution_>> childMoveSelectorList, boolean randomSelection) -
UnionMoveSelector
public UnionMoveSelector(List<MoveSelector<Solution_>> childMoveSelectorList, boolean randomSelection, SelectionProbabilityWeightFactory<Solution_, MoveSelector<Solution_>> selectorProbabilityWeightFactory)
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Method Details
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stepStarted
- Specified by:
stepStarted
in interfacePhaseLifecycleListener<Solution_>
- Overrides:
stepStarted
in classAbstractSelector<Solution_>
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stepEnded
- Specified by:
stepEnded
in interfacePhaseLifecycleListener<Solution_>
- Overrides:
stepEnded
in classAbstractSelector<Solution_>
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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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iterator
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toString
- Overrides:
toString
in classCompositeMoveSelector<Solution_>
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