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java.lang.Objectorg.optaplanner.core.impl.heuristic.selector.AbstractSelector
org.optaplanner.core.impl.heuristic.selector.entity.AbstractEntitySelector
org.optaplanner.core.impl.heuristic.selector.entity.decorator.ProbabilityEntitySelector
public class ProbabilityEntitySelector
Field Summary | |
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protected NavigableMap<Double,Object> |
cachedEntityMap
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protected SelectionCacheType |
cacheType
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protected EntitySelector |
childEntitySelector
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protected SelectionProbabilityWeightFactory |
probabilityWeightFactory
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protected double |
probabilityWeightTotal
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Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector |
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logger, phaseLifecycleSupport, workingRandom |
Constructor Summary | |
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ProbabilityEntitySelector(EntitySelector childEntitySelector,
SelectionCacheType cacheType,
SelectionProbabilityWeightFactory probabilityWeightFactory)
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Method Summary | |
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void |
constructCache(DefaultSolverScope solverScope)
|
void |
disposeCache(DefaultSolverScope solverScope)
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Iterator<Object> |
endingIterator()
If Selector.isNeverEnding() is true, then Iterable.iterator() will never end. |
SelectionCacheType |
getCacheType()
Unless this selector itself caches, this returns SelectionCacheType.JUST_IN_TIME ,
even if a selector child caches. |
EntityDescriptor |
getEntityDescriptor()
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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 . |
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()
|
ListIterator<Object> |
listIterator()
See List.listIterator() |
ListIterator<Object> |
listIterator(int index)
See List.listIterator() |
String |
toString()
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Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector |
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phaseEnded, phaseStarted, solvingEnded, solvingStarted, stepEnded, stepStarted |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.optaplanner.core.impl.phase.event.PhaseLifecycleListener |
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phaseEnded, phaseStarted, stepEnded, stepStarted |
Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener |
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solvingEnded, solvingStarted |
Field Detail |
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protected final EntitySelector childEntitySelector
protected final SelectionCacheType cacheType
protected final SelectionProbabilityWeightFactory probabilityWeightFactory
protected NavigableMap<Double,Object> cachedEntityMap
protected double probabilityWeightTotal
Constructor Detail |
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public ProbabilityEntitySelector(EntitySelector childEntitySelector, SelectionCacheType cacheType, SelectionProbabilityWeightFactory probabilityWeightFactory)
Method Detail |
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public SelectionCacheType getCacheType()
Selector
SelectionCacheType.JUST_IN_TIME
,
even if a selector child caches.
getCacheType
in interface Selector
getCacheType
in class AbstractSelector
public void constructCache(DefaultSolverScope solverScope)
constructCache
in interface SelectionCacheLifecycleListener
public void disposeCache(DefaultSolverScope solverScope)
disposeCache
in interface SelectionCacheLifecycleListener
public EntityDescriptor getEntityDescriptor()
getEntityDescriptor
in interface EntitySelector
public boolean isCountable()
Selector
Selector.isNeverEnding()
is true.
isCountable
in interface Selector
ValueRange
s are countable
(for example a double value range between 1.2 and 1.4 is not countable)public boolean isNeverEnding()
Selector
Selector.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 Selector
Iterator.hasNext()
of the Iterator
created by Iterable.iterator()
never returns false (except when it's empty).public long getSize()
IterableSelector
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
.
getSize
in interface IterableSelector<Object>
Selector
, always >= 0public Iterator<Object> iterator()
iterator
in interface Iterable<Object>
public ListIterator<Object> listIterator()
ListIterable
List.listIterator()
listIterator
in interface ListIterable<Object>
List.listIterator()
.public ListIterator<Object> listIterator(int index)
ListIterable
List.listIterator()
listIterator
in interface ListIterable<Object>
index
- lower than the size of this ListIterable
, see List.listIterator(int)
.
List.listIterator(int)
.public Iterator<Object> endingIterator()
EntitySelector
Selector.isNeverEnding()
is true, then Iterable.iterator()
will never end.
This returns an ending Iterator
, that tries to match Iterable.iterator()
as much as possible,
but return each distinct element only once
and therefore it might not respect the configuration of this EntitySelector
entirely.
endingIterator
in interface EntitySelector
Iterable.iterator()
public String toString()
toString
in class Object
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OptaPlanner core 6.1.0.Final | |||||||||
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