public class ProbabilityValueSelector extends AbstractValueSelector implements EntityIndependentValueSelector, SelectionCacheLifecycleListener
| Modifier and Type | Field and Description |
|---|---|
protected NavigableMap<Double,Object> |
cachedEntityMap |
protected SelectionCacheType |
cacheType |
protected EntityIndependentValueSelector |
childValueSelector |
protected SelectionProbabilityWeightFactory |
probabilityWeightFactory |
protected double |
probabilityWeightTotal |
logger, phaseLifecycleSupport, workingRandom| Constructor and Description |
|---|
ProbabilityValueSelector(EntityIndependentValueSelector childValueSelector,
SelectionCacheType cacheType,
SelectionProbabilityWeightFactory probabilityWeightFactory) |
| Modifier and Type | Method and Description |
|---|---|
void |
constructCache(DefaultSolverScope solverScope) |
void |
disposeCache(DefaultSolverScope solverScope) |
Iterator<Object> |
endingIterator(Object entity)
If
Selector.isNeverEnding() is true, then ValueSelector.iterator(Object) will never end. |
SelectionCacheType |
getCacheType()
Unless this selector itself caches, this returns
SelectionCacheType.JUST_IN_TIME,
even if a selector child caches. |
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. |
long |
getSize(Object entity)
Similar to
IterableSelector.getSize(), but requires an entity. |
GenuineVariableDescriptor |
getVariableDescriptor() |
boolean |
isCountable()
If false, then
Selector.isNeverEnding() is true. |
boolean |
isNeverEnding()
Is true if
Selector.isCountable() is false
or if this selector is in random order (for most cases). |
Iterator<Object> |
iterator() |
Iterator<Object> |
iterator(Object entity)
Similar to
Iterable.iterator(), but requires an entity. |
String |
toString() |
phaseEnded, phaseStarted, solvingEnded, solvingStarted, stepEnded, stepStartedclone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitphaseEnded, phaseStarted, stepEnded, stepStartedsolvingEnded, solvingStartedforEach, spliteratorprotected final EntityIndependentValueSelector childValueSelector
protected final SelectionCacheType cacheType
protected final SelectionProbabilityWeightFactory probabilityWeightFactory
protected NavigableMap<Double,Object> cachedEntityMap
protected double probabilityWeightTotal
public ProbabilityValueSelector(EntityIndependentValueSelector childValueSelector, SelectionCacheType cacheType, SelectionProbabilityWeightFactory probabilityWeightFactory)
public SelectionCacheType getCacheType()
SelectorSelectionCacheType.JUST_IN_TIME,
even if a selector child caches.getCacheType in interface SelectorgetCacheType in class AbstractSelectorpublic void constructCache(DefaultSolverScope solverScope)
constructCache in interface SelectionCacheLifecycleListenerpublic void disposeCache(DefaultSolverScope solverScope)
disposeCache in interface SelectionCacheLifecycleListenerpublic GenuineVariableDescriptor getVariableDescriptor()
getVariableDescriptor in interface ValueSelectorpublic boolean isCountable()
SelectorSelector.isNeverEnding() is true.isCountable in interface SelectorValueRanges are countable
(for example a double value range between 1.2 and 1.4 is not countable)public boolean isNeverEnding()
SelectorSelector.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).isNeverEnding in interface SelectorIterator.hasNext() of the Iterator created by Iterable.iterator()
never returns false (except when it's empty).public long getSize(Object entity)
ValueSelectorIterableSelector.getSize(), but requires an entity.getSize in interface ValueSelectorentity - never nullSelector, always >= 0public long getSize()
IterableSelectorSelector 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.getSize in interface IterableSelector<Object>Selector, always >= 0public Iterator<Object> iterator(Object entity)
ValueSelectorIterable.iterator(), but requires an entity.iterator in interface ValueSelectorentity - never nullpublic Iterator<Object> endingIterator(Object entity)
ValueSelectorSelector.isNeverEnding() is true, then ValueSelector.iterator(Object) will never end.
This returns an ending Iterator, that tries to match ValueSelector.iterator(Object) as much as possible,
but return each distinct element only once
and therefore it might not respect the configuration of this ValueSelector entirely.endingIterator in interface ValueSelectorentity - never nullValueSelector.iterator(Object)Copyright © 2006–2021 JBoss by Red Hat. All rights reserved.