org.optaplanner.core.impl.heuristic.selector.entity.decorator
Class AbstractCachingEntitySelector
java.lang.Object
org.optaplanner.core.impl.heuristic.selector.AbstractSelector
org.optaplanner.core.impl.heuristic.selector.entity.AbstractEntitySelector
org.optaplanner.core.impl.heuristic.selector.entity.decorator.AbstractCachingEntitySelector
- All Implemented Interfaces:
- Iterable<Object>, EventListener, ListIterable<Object>, SelectionCacheLifecycleListener, EntitySelector, IterableSelector<Object>, ListIterableSelector<Object>, Selector, PhaseLifecycleListener, SolverLifecycleListener
- Direct Known Subclasses:
- CachingEntitySelector, ShufflingEntitySelector, SortingEntitySelector
public abstract class AbstractCachingEntitySelector
- extends AbstractEntitySelector
- implements SelectionCacheLifecycleListener
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
childEntitySelector
protected final EntitySelector childEntitySelector
cacheType
protected final SelectionCacheType cacheType
cachedEntityList
protected List<Object> cachedEntityList
AbstractCachingEntitySelector
public AbstractCachingEntitySelector(EntitySelector childEntitySelector,
SelectionCacheType cacheType)
getChildEntitySelector
public EntitySelector getChildEntitySelector()
getCacheType
public SelectionCacheType getCacheType()
- Description copied from interface:
Selector
- Unless this selector itself caches, this returns
SelectionCacheType.JUST_IN_TIME,
even if a selector child caches.
- Specified by:
getCacheType in interface Selector- Overrides:
getCacheType in class AbstractSelector
- Returns:
- never null
constructCache
public void constructCache(DefaultSolverScope solverScope)
- Specified by:
constructCache in interface SelectionCacheLifecycleListener
disposeCache
public void disposeCache(DefaultSolverScope solverScope)
- Specified by:
disposeCache in interface SelectionCacheLifecycleListener
getEntityDescriptor
public EntityDescriptor getEntityDescriptor()
- Specified by:
getEntityDescriptor in interface EntitySelector
- Returns:
- never null
isCountable
public boolean isCountable()
- Description copied from interface:
Selector
- If false, then
Selector.isNeverEnding() is true.
- Specified by:
isCountable in interface Selector
- Returns:
- true if all the
ValueRanges are countable
(for example a double value range between 1.2 and 1.4 is not countable)
getSize
public long getSize()
- Description copied from interface:
IterableSelector
- 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.
- Specified by:
getSize in interface IterableSelector<Object>
- Returns:
- the approximate number of elements generated by this
Selector, always >= 0
endingIterator
public Iterator<Object> endingIterator()
- Description copied from interface:
EntitySelector
- If
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.
- Specified by:
endingIterator in interface EntitySelector
- Returns:
- never null
- See Also:
Iterable.iterator()
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