Package org.optaplanner.core.impl.heuristic.selector.entity.pillar

## Interface PillarSelector<Solution_>

- All Superinterfaces:
    `EventListener`, `Iterable<List<Object>>`, `IterableSelector<Solution_,​List<Object>>`, `ListIterable<List<Object>>`, `ListIterableSelector<Solution_,​List<Object>>`, `PhaseLifecycleListener<Solution_>`, `Selector<Solution_>`, `SolverLifecycleListener<Solution_>`
  All Known Implementing Classes:
    `DefaultPillarSelector`

      public interface PillarSelector<Solution_>
      extends ListIterableSelector<Solution_,​List<Object>>

  A pillar is a `List` of entities that have the same planning value for each (or a subset) of their planning values. Selects a `List` of such entities that are moved together.
  See Also:
    `EntitySelector`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `EntityDescriptor<Solution_>` | `getEntityDescriptor()` |

    - ### Methods inherited from interface java.lang.Iterable

      `forEach, iterator`

    - ### Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.IterableSelector

      `getSize, spliterator`

    - ### Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.common.iterator.ListIterable

      `listIterator, listIterator`

    - ### Methods inherited from interface org.optaplanner.core.impl.phase.event.PhaseLifecycleListener

      `phaseEnded, phaseStarted, stepEnded, stepStarted`

    - ### Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.Selector

      `getCacheType, isCountable, isNeverEnding`

    - ### Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener

      `solvingEnded, solvingStarted`

- - ### Method Detail

    - #### getEntityDescriptor

          EntityDescriptor<Solution_> getEntityDescriptor()

      Returns:
        never null