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## org.optaplanner.core.impl.heuristic.selector.entity.decorator
Class ShufflingEntitySelector

    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
                  org.optaplanner.core.impl.heuristic.selector.entity.decorator.ShufflingEntitySelector

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

    public class ShufflingEntitySelector

extends AbstractCachingEntitySelector

Field Summary

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

Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
`logger, phaseLifecycleSupport, workingRandom`

Constructor Summary
`ShufflingEntitySelector(EntitySelector childEntitySelector, SelectionCacheType cacheType)`

Method Summary
`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()`

Methods inherited from class org.optaplanner.core.impl.heuristic.selector.entity.decorator.AbstractCachingEntitySelector
`constructCache, disposeCache, endingIterator, getCacheType, getChildEntitySelector, getEntityDescriptor, getSize, isCountable`

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`

Constructor Detail

### ShufflingEntitySelector

    public ShufflingEntitySelector(EntitySelector childEntitySelector,
                                   SelectionCacheType cacheType)

Method Detail

### isNeverEnding

    public boolean isNeverEnding()

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

  Returns:
    true if the `Iterator.hasNext()` of the `Iterator` created by `Iterable.iterator()` never returns false (except when it's empty).

### 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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