org.optaplanner.core.impl.heuristic.selector.move.factory

## Class MoveListFactoryToMoveSelectorBridge

- java.lang.Object
- - org.optaplanner.core.impl.heuristic.selector.AbstractSelector
  - - org.optaplanner.core.impl.heuristic.selector.move.AbstractMoveSelector
    - - org.optaplanner.core.impl.heuristic.selector.move.factory.MoveListFactoryToMoveSelectorBridge

- All Implemented Interfaces:
    Iterable<Move>, EventListener, SelectionCacheLifecycleListener, IterableSelector<Move>, MoveSelector, Selector, PhaseLifecycleListener, SolverLifecycleListener

      public class MoveListFactoryToMoveSelectorBridge
      extends AbstractMoveSelector
      implements SelectionCacheLifecycleListener

  Bridges a `MoveListFactory` to a `MoveSelector`.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected List<Move>` | `cachedMoveList`
    `protected SelectionCacheType` | `cacheType`
    `protected MoveListFactory` | `moveListFactory`
    `protected boolean` | `randomSelection`

    - ### Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector

      `logger, phaseLifecycleSupport, workingRandom`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `MoveListFactoryToMoveSelectorBridge(MoveListFactory moveListFactory, SelectionCacheType cacheType, boolean randomSelection)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `constructCache(DefaultSolverScope solverScope)`
    `void` | `disposeCache(DefaultSolverScope solverScope)`
    `SelectionCacheType` | `getCacheType()` Unless this selector itself caches, this returns `SelectionCacheType.JUST_IN_TIME`, even if a selector child caches.
    `long` | `getSize()` 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`.
    `boolean` | `isCountable()` If false, then `Selector.isNeverEnding()` is true.
    `boolean` | `isNeverEnding()` Is true if `Selector.isCountable()` is false or if this selector is in random order (for most cases).
    `Iterator<Move>` | `iterator()`
    `boolean` | `supportsPhaseAndSolverCaching()`
    `String` | `toString()`

    - ### 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`

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

      `forEach, spliterator`

- - ### Field Detail

    - #### moveListFactory

          protected final MoveListFactory moveListFactory

    - #### cacheType

          protected final SelectionCacheType cacheType

    - #### randomSelection

          protected final boolean randomSelection

    - #### cachedMoveList

          protected List<Move> cachedMoveList

  - ### Constructor Detail

    - #### MoveListFactoryToMoveSelectorBridge

          public MoveListFactoryToMoveSelectorBridge(MoveListFactory moveListFactory,
                                                     SelectionCacheType cacheType,
                                                     boolean randomSelection)

  - ### Method Detail

    - #### 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

    - #### supportsPhaseAndSolverCaching

          public boolean supportsPhaseAndSolverCaching()

      Specified by:
        `supportsPhaseAndSolverCaching` in interface `MoveSelector`

    - #### constructCache

          public void constructCache(DefaultSolverScope solverScope)

      Specified by:
        `constructCache` in interface `SelectionCacheLifecycleListener`

    - #### disposeCache

          public void disposeCache(DefaultSolverScope solverScope)

      Specified by:
        `disposeCache` in interface `SelectionCacheLifecycleListener`

    - #### 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 `ValueRange`s are countable (for example a double value range between 1.2 and 1.4 is not countable)

    - #### 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).
      Specified by:
        `isNeverEnding` in interface `Selector`
      Returns:
        true if the `Iterator.hasNext()` of the `Iterator` created by `Iterable.iterator()` never returns false (except when it's empty).

    - #### 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<Move>`
      Returns:
        the approximate number of elements generated by this `Selector`, always `>= 0`

    - #### iterator

          public Iterator<Move> iterator()

      Specified by:
        `iterator` in interface `Iterable<Move>`

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `Object`

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