Class InitializedValueSelector<Solution_>
- java.lang.Object
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- org.optaplanner.core.impl.heuristic.selector.AbstractSelector<Solution_>
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- org.optaplanner.core.impl.heuristic.selector.value.AbstractValueSelector<Solution_>
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- org.optaplanner.core.impl.heuristic.selector.value.decorator.InitializedValueSelector<Solution_>
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- All Implemented Interfaces:
EventListener,Selector<Solution_>,ValueSelector<Solution_>,PhaseLifecycleListener<Solution_>,SolverLifecycleListener<Solution_>
- Direct Known Subclasses:
EntityIndependentInitializedValueSelector
public class InitializedValueSelector<Solution_> extends AbstractValueSelector<Solution_>
Prevents creating chains without an anchor.Filters out every value that is a planning entity for which the
PlanningVariable(on which thisValueSelectorapplies to) is uninitialized.Mainly used for chained planning variables, but supports other planning variables too.
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected classInitializedValueSelector.JustInTimeInitializedValueIterator
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Field Summary
Fields Modifier and Type Field Description protected booleanbailOutEnabledprotected ValueSelector<Solution_>childValueSelectorprotected GenuineVariableDescriptor<Solution_>variableDescriptor-
Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
logger, phaseLifecycleSupport, workingRandom
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Constructor Summary
Constructors Modifier Constructor Description protectedInitializedValueSelector(ValueSelector<Solution_> childValueSelector)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected booleanaccept(Object value)static <Solution_>
ValueSelector<Solution_>create(ValueSelector<Solution_> valueSelector)protected longdetermineBailOutSize(Object entity)Iterator<Object>endingIterator(Object entity)IfSelector.isNeverEnding()is true, thenValueSelector.iterator(Object)will never end.longgetSize(Object entity)Similar toIterableSelector.getSize(), but requires an entity.GenuineVariableDescriptor<Solution_>getVariableDescriptor()booleanisCountable()If false, thenSelector.isNeverEnding()is true.booleanisNeverEnding()Is true ifSelector.isCountable()is false or if this selector is in random order (for most cases).Iterator<Object>iterator(Object entity)Similar toIterable.iterator(), but requires an entity.StringtoString()-
Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
getCacheType, phaseEnded, phaseStarted, 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 org.optaplanner.core.impl.phase.event.PhaseLifecycleListener
phaseEnded, phaseStarted, 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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variableDescriptor
protected final GenuineVariableDescriptor<Solution_> variableDescriptor
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childValueSelector
protected final ValueSelector<Solution_> childValueSelector
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bailOutEnabled
protected final boolean bailOutEnabled
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Constructor Detail
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InitializedValueSelector
protected InitializedValueSelector(ValueSelector<Solution_> childValueSelector)
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Method Detail
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create
public static <Solution_> ValueSelector<Solution_> create(ValueSelector<Solution_> valueSelector)
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getVariableDescriptor
public GenuineVariableDescriptor<Solution_> getVariableDescriptor()
- Returns:
- never null
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isCountable
public boolean isCountable()
Description copied from interface:SelectorIf false, thenSelector.isNeverEnding()is true.- Returns:
- true if all the
ValueRanges 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:SelectorIs 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 theIteratorcreated byIterable.iterator()never returns false (except when it's empty).
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getSize
public long getSize(Object entity)
Description copied from interface:ValueSelectorSimilar toIterableSelector.getSize(), but requires an entity.- Parameters:
entity- never null- Returns:
- the approximate number of elements generated by this
Selector, always>= 0
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iterator
public Iterator<Object> iterator(Object entity)
Description copied from interface:ValueSelectorSimilar toIterable.iterator(), but requires an entity.- Parameters:
entity- never null- Returns:
- never null
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endingIterator
public Iterator<Object> endingIterator(Object entity)
Description copied from interface:ValueSelectorIfSelector.isNeverEnding()is true, thenValueSelector.iterator(Object)will never end. This returns an endingIterator, that tries to matchValueSelector.iterator(Object)as much as possible, but return each distinct element only once and therefore it might not respect the configuration of thisValueSelectorentirely.- Parameters:
entity- never null- Returns:
- never null
- See Also:
ValueSelector.iterator(Object)
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determineBailOutSize
protected long determineBailOutSize(Object entity)
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accept
protected boolean accept(Object value)
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