org.optaplanner.core.impl.heuristic.selector
Interface IterableSelector<T>

All Superinterfaces:

EventListener, Iterable<T>, PhaseLifecycleListener, Selector, SolverLifecycleListener

All Known Subinterfaces:

EntityIndependentValueSelector, EntitySelector, ListIterableSelector<T>, MoveSelector, PillarSelector, SubChainSelector

All Known Implementing Classes:

AbstractCachingEntitySelector, AbstractCachingMoveSelector, AbstractEntitySelector, AbstractMoveSelector, CachingEntitySelector, CachingMoveSelector, CachingValueSelector, CartesianProductMoveSelector, ChangeMoveSelector, CompositeMoveSelector, DefaultPillarSelector, DefaultSubChainSelector, FilteringEntitySelector, FilteringMoveSelector, FromSolutionEntitySelector, FromSolutionPropertyValueSelector, GenericMoveSelector, MimicRecordingEntitySelector, MimicReplayingEntitySelector, MoveIteratorFactoryToMoveSelectorBridge, MoveListFactoryToMoveSelectorBridge, NearEntityNearbyEntitySelector, PillarChangeMoveSelector, PillarSwapMoveSelector, ProbabilityEntitySelector, ProbabilityMoveSelector, ProbabilityValueSelector, SelectedCountLimitEntitySelector, SelectedCountLimitMoveSelector, SelectedCountLimitValueSelector, ShufflingEntitySelector, ShufflingMoveSelector, ShufflingValueSelector, SortingEntitySelector, SortingMoveSelector, SortingValueSelector, SubChainChangeMoveSelector, SubChainSwapMoveSelector, SwapMoveSelector, UnionMoveSelector

public interface IterableSelector<T>
extends Selector, Iterable<T>

Method Summary

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.

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

getCacheType, isCountable, isNeverEnding

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

iterator

Method Detail

getSize

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.

Returns:

the approximate number of elements generated by this Selector, always >= 0

Throws:

IllegalStateException - if Selector.isCountable() returns false, but not if only Selector.isNeverEnding() returns true