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## org.drools.planner.core.heuristic.selector.entity.decorator
Class CachingEntitySelector

    java.lang.Object
      org.drools.planner.core.heuristic.selector.AbstractSelector
          org.drools.planner.core.heuristic.selector.entity.AbstractEntitySelector
              org.drools.planner.core.heuristic.selector.entity.decorator.AbstractCachingEntitySelector
                  org.drools.planner.core.heuristic.selector.entity.decorator.CachingEntitySelector

All Implemented Interfaces:
  Iterable<Object>, EventListener, ListIterable<Object>, SelectionCacheLifecycleListener, EntitySelector, IterableSelector<Object>, ListIterableSelector<Object>, Selector, SolverPhaseLifecycleListener, SolverLifecycleListener

    public class CachingEntitySelector

extends AbstractCachingEntitySelector

A `EntitySelector` that caches the result of its child `EntitySelector`.

Keep this code in sync with `CachingValueSelector` and `CachingMoveSelector`.

Field Summary
`protected boolean` | `randomSelection`

Fields inherited from class org.drools.planner.core.heuristic.selector.entity.decorator.AbstractCachingEntitySelector
`cachedEntityList, cacheType, childEntitySelector`

Fields inherited from class org.drools.planner.core.heuristic.selector.AbstractSelector
`logger, solverPhaseLifecycleSupport, workingRandom`

Constructor Summary
`CachingEntitySelector(EntitySelector childEntitySelector, SelectionCacheType cacheType, boolean randomSelection)`

Method Summary
`boolean` | `isNeverEnding()` Is true if `Selector.isContinuous()` is true 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()`

Methods inherited from class org.drools.planner.core.heuristic.selector.entity.decorator.AbstractCachingEntitySelector
`constructCache, disposeCache, getCacheType, getChildEntitySelector, getEntityDescriptor, getSize, isContinuous`

Methods inherited from class org.drools.planner.core.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.drools.planner.core.phase.event.SolverPhaseLifecycleListener
`phaseEnded, phaseStarted, stepEnded, stepStarted`

Methods inherited from interface org.drools.planner.core.solver.event.SolverLifecycleListener
`solvingEnded, solvingStarted`

Field Detail

### randomSelection

    protected final boolean randomSelection

Constructor Detail

### CachingEntitySelector

    public CachingEntitySelector(EntitySelector childEntitySelector,
                                 SelectionCacheType cacheType,
                                 boolean randomSelection)

Method Detail

### isNeverEnding

    public boolean isNeverEnding()

  Description copied from interface: `Selector`
  Is true if `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).

  Returns:
    true if the `Iterator.hasNext()` of the `Iterator` created by `Iterable.iterator()` never returns false.

### iterator

    public Iterator<Object> iterator()

### listIterator

    public ListIterator<Object> listIterator()

  Description copied from interface: `ListIterable`
  See `List.listIterator()`

  Returns:
    never null, see `List.listIterator()`.

### listIterator

    public ListIterator<Object> listIterator(int index)

  Description copied from interface: `ListIterable`
  See `List.listIterator()`

  Parameters:
    `index` - lower than the size of this `ListIterable`, see `List.listIterator(int)`.
  Returns:
    never null, see `List.listIterator(int)`.

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

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