Class SwapMoveSelector<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.generic.GenericMoveSelector<Solution_>
org.optaplanner.core.impl.heuristic.selector.move.generic.SwapMoveSelector<Solution_>
- All Implemented Interfaces:
Iterable<Move<Solution_>>
,EventListener
,IterableSelector<Solution_,
,Move<Solution_>> MoveSelector<Solution_>
,Selector<Solution_>
,PhaseLifecycleListener<Solution_>
,SolverLifecycleListener<Solution_>
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Field Summary
Modifier and TypeFieldDescriptionprotected final boolean
protected List<SingletonInverseVariableSupply>
protected final EntitySelector<Solution_>
protected final boolean
protected final EntitySelector<Solution_>
protected final List<GenuineVariableDescriptor<Solution_>>
Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
logger, phaseLifecycleSupport, workingRandom
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Constructor Summary
ConstructorDescriptionSwapMoveSelector
(EntitySelector<Solution_> leftEntitySelector, EntitySelector<Solution_> rightEntitySelector, List<GenuineVariableDescriptor<Solution_>> variableDescriptorList, boolean randomSelection) -
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
If false, thenSelector.isNeverEnding()
is true.boolean
Is true ifSelector.isCountable()
is false or if this selector is in random order (for most cases).iterator()
void
solvingEnded
(SolverScope<Solution_> solverScope) void
solvingStarted
(SolverScope<Solution_> solverScope) boolean
toString()
Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
getCacheType, phaseEnded, phaseStarted, stepEnded, stepStarted
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, stepEnded, stepStarted
Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.Selector
getCacheType
Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener
solvingError
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Field Details
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leftEntitySelector
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rightEntitySelector
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variableDescriptorList
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randomSelection
protected final boolean randomSelection -
anyChained
protected final boolean anyChained -
inverseVariableSupplyList
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Constructor Details
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SwapMoveSelector
public SwapMoveSelector(EntitySelector<Solution_> leftEntitySelector, EntitySelector<Solution_> rightEntitySelector, List<GenuineVariableDescriptor<Solution_>> variableDescriptorList, boolean randomSelection)
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Method Details
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supportsPhaseAndSolverCaching
public boolean supportsPhaseAndSolverCaching() -
solvingStarted
- Specified by:
solvingStarted
in interfaceSolverLifecycleListener<Solution_>
- Overrides:
solvingStarted
in classAbstractSelector<Solution_>
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solvingEnded
- Specified by:
solvingEnded
in interfaceSolverLifecycleListener<Solution_>
- Overrides:
solvingEnded
in classAbstractSelector<Solution_>
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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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iterator
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toString
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