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OptaPlanner distribution 6.1.0.CR2 | |||||||||
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java.lang.Objectorg.optaplanner.core.impl.heuristic.selector.AbstractSelector
org.optaplanner.core.impl.heuristic.selector.value.AbstractValueSelector
org.optaplanner.core.impl.heuristic.selector.value.FromSolutionPropertyValueSelector
public class FromSolutionPropertyValueSelector
This is the common ValueSelector implementation.
| Field Summary | |
|---|---|
protected boolean |
cachedEntityListIsDirty
|
protected Long |
cachedEntityListRevision
|
protected ValueRange<Object> |
cachedValueRange
|
protected SelectionCacheType |
minimumCacheType
|
protected boolean |
randomSelection
|
protected EntityIndependentValueRangeDescriptor |
valueRangeDescriptor
|
protected boolean |
valueRangeMightContainEntity
|
| Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector |
|---|
logger, phaseLifecycleSupport, workingRandom |
| Constructor Summary | |
|---|---|
FromSolutionPropertyValueSelector(EntityIndependentValueRangeDescriptor valueRangeDescriptor,
SelectionCacheType minimumCacheType,
boolean randomSelection)
|
|
| Method Summary | |
|---|---|
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. |
void |
phaseEnded(AbstractPhaseScope phaseScope)
|
void |
phaseStarted(AbstractPhaseScope phaseScope)
|
void |
stepStarted(AbstractStepScope stepScope)
|
String |
toString()
|
| Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector |
|---|
solvingEnded, solvingStarted, stepEnded |
| 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.phase.event.PhaseLifecycleListener |
|---|
stepEnded |
| Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener |
|---|
solvingEnded, solvingStarted |
| Field Detail |
|---|
protected final EntityIndependentValueRangeDescriptor valueRangeDescriptor
protected final SelectionCacheType minimumCacheType
protected final boolean randomSelection
protected final boolean valueRangeMightContainEntity
protected ValueRange<Object> cachedValueRange
protected Long cachedEntityListRevision
protected boolean cachedEntityListIsDirty
| Constructor Detail |
|---|
public FromSolutionPropertyValueSelector(EntityIndependentValueRangeDescriptor valueRangeDescriptor,
SelectionCacheType minimumCacheType,
boolean randomSelection)
| Method Detail |
|---|
public GenuineVariableDescriptor getVariableDescriptor()
getVariableDescriptor in interface ValueSelectorpublic SelectionCacheType getCacheType()
SelectorSelectionCacheType.JUST_IN_TIME,
even if a selector child caches.
getCacheType in interface SelectorgetCacheType in class AbstractSelectorpublic void phaseStarted(AbstractPhaseScope phaseScope)
phaseStarted in interface PhaseLifecycleListenerphaseStarted in class AbstractSelectorpublic void stepStarted(AbstractStepScope stepScope)
stepStarted in interface PhaseLifecycleListenerstepStarted in class AbstractSelectorpublic void phaseEnded(AbstractPhaseScope phaseScope)
phaseEnded in interface PhaseLifecycleListenerphaseEnded in class AbstractSelectorpublic 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 null
Selector, 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 null
public Iterator<Object> iterator()
iterator in interface Iterable<Object>public String toString()
toString in class Object
|
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