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

Interface Selector<Solution_>

All Superinterfaces:
EventListener, PhaseLifecycleListener<Solution_>, SolverLifecycleListener<Solution_>
All Known Subinterfaces:
DestinationSelector<Solution_>, EntityIndependentValueSelector<Solution_>, EntitySelector<Solution_>, IterableSelector<Solution_,T>, ListIterableSelector<Solution_,T>, MoveSelector<Solution_>, PillarSelector<Solution_>, SubChainSelector<Solution_>, SubListSelector<Solution_>, ValueSelector<Solution_>
All Known Implementing Classes:
AbstractCachingEntitySelector, AbstractCachingMoveSelector, AbstractCachingValueSelector, AbstractDemandEnabledSelector, AbstractMoveSelector, AbstractNearbySelector, AbstractSelector, AssignedValueSelector, CachingEntitySelector, CachingMoveSelector, CachingValueSelector, CartesianProductMoveSelector, ChangeMoveSelector, CompositeMoveSelector, DefaultPillarSelector, DefaultSubChainSelector, DowncastingValueSelector, ElementDestinationSelector, EntityDependentSortingValueSelector, EntityIndependentFilteringValueSelector, EntityIndependentInitializedValueSelector, FilteringEntitySelector, FilteringMoveSelector, FilteringValueSelector, FromEntityPropertyValueSelector, FromSolutionEntitySelector, FromSolutionPropertyValueSelector, GenericMoveSelector, InitializedValueSelector, KOptMoveSelector, ListChangeMoveSelector, ListSwapMoveSelector, MimicRecordingEntitySelector, MimicRecordingSubListSelector, MimicRecordingValueSelector, MimicReplayingEntitySelector, MimicReplayingSubListSelector, MimicReplayingValueSelector, MoveIteratorFactoryToMoveSelectorBridge, MoveListFactoryToMoveSelectorBridge, NearEntityNearbyEntitySelector, NearEntityNearbyValueSelector, NearSubListNearbyDestinationSelector, NearSubListNearbySubListSelector, NearValueNearbyDestinationSelector, NearValueNearbyValueSelector, PillarChangeMoveSelector, PillarSwapMoveSelector, ProbabilityEntitySelector, ProbabilityMoveSelector, ProbabilityValueSelector, RandomSubListChangeMoveSelector, RandomSubListSelector, RandomSubListSwapMoveSelector, ReinitializeVariableValueSelector, SelectedCountLimitEntitySelector, SelectedCountLimitMoveSelector, SelectedCountLimitValueSelector, ShufflingEntitySelector, ShufflingMoveSelector, ShufflingValueSelector, SortingEntitySelector, SortingMoveSelector, SortingValueSelector, SubChainChangeMoveSelector, SubChainSwapMoveSelector, SwapMoveSelector, TailChainSwapMoveSelector, UnassignedValueSelector, UnionMoveSelector
public interface Selector<Solution_> extends PhaseLifecycleListener<Solution_>
General interface for MoveSelector, EntitySelector and ValueSelector which generates Moves or parts of them.

  • Method Details

    • isCountable

      boolean isCountable()
      If false, then isNeverEnding() is true.
      Returns:
      true if all the ValueRanges are countable (for example a double value range between 1.2 and 1.4 is not countable)

    • isNeverEnding

      boolean isNeverEnding()
      Is true if 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).

    • getCacheType

      SelectionCacheType getCacheType()
      Unless this selector itself caches, this returns SelectionCacheType.JUST_IN_TIME, even if a selector child caches.
      Returns:
      never null