org.optaplanner.core.impl.heuristic.selector.value.chained
public class DefaultSubChainSelector extends AbstractSelector implements SubChainSelector, SelectionCacheLifecycleListener
SubChainSelector
implementation.Modifier and Type | Field and Description |
---|---|
protected List<SubChain> |
anchorTrailingChainList |
protected static SelectionCacheType |
CACHE_TYPE |
protected int |
maximumSubChainSize |
protected int |
minimumSubChainSize |
protected boolean |
randomSelection |
protected EntityIndependentValueSelector |
valueSelector |
logger, solverPhaseLifecycleSupport, workingRandom
Constructor and Description |
---|
DefaultSubChainSelector(EntityIndependentValueSelector valueSelector,
boolean randomSelection,
int minimumSubChainSize,
int maximumSubChainSize) |
Modifier and Type | Method and Description |
---|---|
void |
constructCache(DefaultSolverScope solverScope) |
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 . |
PlanningVariableDescriptor |
getVariableDescriptor() |
boolean |
isContinuous()
If true, then
Selector.isNeverEnding() is also true. |
boolean |
isNeverEnding()
Is true if
Selector.isContinuous() is true
or if this selector is in random order (for most cases). |
Iterator<SubChain> |
iterator() |
ListIterator<SubChain> |
listIterator()
|
ListIterator<SubChain> |
listIterator(int index)
|
String |
toString() |
phaseEnded, phaseStarted, solvingEnded, solvingStarted, stepEnded, stepStarted
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
phaseEnded, phaseStarted, stepEnded, stepStarted
solvingEnded, solvingStarted
protected static final SelectionCacheType CACHE_TYPE
protected final EntityIndependentValueSelector valueSelector
protected final boolean randomSelection
protected final int minimumSubChainSize
protected final int maximumSubChainSize
public DefaultSubChainSelector(EntityIndependentValueSelector valueSelector, boolean randomSelection, int minimumSubChainSize, int maximumSubChainSize)
public PlanningVariableDescriptor getVariableDescriptor()
getVariableDescriptor
in interface SubChainSelector
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 boolean isContinuous()
Selector
Selector.isNeverEnding()
is also true.isContinuous
in interface Selector
public boolean isNeverEnding()
Selector
Selector.isContinuous()
is true
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.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<SubChain>
Selector
, always >= 0public ListIterator<SubChain> listIterator()
ListIterable
listIterator
in interface ListIterable<SubChain>
List.listIterator()
.public ListIterator<SubChain> listIterator(int index)
ListIterable
listIterator
in interface ListIterable<SubChain>
index
- lower than the size of this ListIterable
, see List.listIterator(int)
.List.listIterator(int)
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