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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.chained.DefaultSubChainSelector
public class DefaultSubChainSelector
This is the common SubChainSelector implementation.
| Field Summary | |
|---|---|
protected List<SubChain> |
anchorTrailingChainList
|
protected static SelectionCacheType |
CACHE_TYPE
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protected int |
maximumSubChainSize
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protected int |
minimumSubChainSize
Unlike DefaultPillarSelector.minimumSubPillarSize and DefaultPillarSelector.maximumSubPillarSize,
the sub selection here is a sequence. |
protected boolean |
randomSelection
|
protected EntityIndependentValueSelector |
valueSelector
|
| Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector |
|---|
logger, phaseLifecycleSupport, workingRandom |
| Constructor Summary | |
|---|---|
DefaultSubChainSelector(EntityIndependentValueSelector valueSelector,
boolean randomSelection,
int minimumSubChainSize,
int maximumSubChainSize)
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|
| Method Summary | |
|---|---|
protected long |
calculateSubChainSelectionSize(SubChain anchorTrailingChain)
|
void |
constructCache(DefaultSolverScope solverScope)
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void |
disposeCache(DefaultSolverScope solverScope)
|
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. |
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<SubChain> |
iterator()
|
ListIterator<SubChain> |
listIterator()
See List.listIterator() |
ListIterator<SubChain> |
listIterator(int index)
See List.listIterator() |
String |
toString()
|
| Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector |
|---|
phaseEnded, phaseStarted, solvingEnded, solvingStarted, 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.phase.event.PhaseLifecycleListener |
|---|
phaseEnded, phaseStarted, stepEnded, stepStarted |
| Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener |
|---|
solvingEnded, solvingStarted |
| Field Detail |
|---|
protected static final SelectionCacheType CACHE_TYPE
protected final EntityIndependentValueSelector valueSelector
protected final boolean randomSelection
protected final int minimumSubChainSize
DefaultPillarSelector.minimumSubPillarSize and DefaultPillarSelector.maximumSubPillarSize,
the sub selection here is a sequence. For example from ABCDE,it can select BCD, but not ACD.
protected final int maximumSubChainSize
protected List<SubChain> anchorTrailingChainList
| Constructor Detail |
|---|
public DefaultSubChainSelector(EntityIndependentValueSelector valueSelector,
boolean randomSelection,
int minimumSubChainSize,
int maximumSubChainSize)
| Method Detail |
|---|
public GenuineVariableDescriptor getVariableDescriptor()
getVariableDescriptor in interface SubChainSelectorpublic 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 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()
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<SubChain>Selector, always >= 0protected long calculateSubChainSelectionSize(SubChain anchorTrailingChain)
public Iterator<SubChain> iterator()
iterator in interface Iterable<SubChain>public ListIterator<SubChain> listIterator()
ListIterableList.listIterator()
listIterator in interface ListIterable<SubChain>List.listIterator().public ListIterator<SubChain> listIterator(int index)
ListIterableList.listIterator()
listIterator in interface ListIterable<SubChain>index - lower than the size of this ListIterable, see List.listIterator(int).
List.listIterator(int).public String toString()
toString in class Object
|
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