org.optaplanner.core.impl.heuristic.selector.move.composite
Class UnionMoveSelector
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.composite.CompositeMoveSelector
org.optaplanner.core.impl.heuristic.selector.move.composite.UnionMoveSelector
- All Implemented Interfaces:
- Iterable<Move>, EventListener, IterableSelector<Move>, MoveSelector, Selector, SolverPhaseLifecycleListener, SolverLifecycleListener
public class UnionMoveSelector
- extends CompositeMoveSelector
A CompositeMoveSelector
that unions 2 or more MoveSelector
s.
For example: a union of {A, B, C} and {X, Y} will result in {A, B, C, X, Y}.
Warning: there is no duplicated Move
check, so union of {A, B, C} and {B, D} will result in {A, B, C, B, D}.
- See Also:
CompositeMoveSelector
selectorProbabilityWeightFactory
protected final SelectionProbabilityWeightFactory selectorProbabilityWeightFactory
scoreDirector
protected ScoreDirector scoreDirector
UnionMoveSelector
public UnionMoveSelector(List<MoveSelector> childMoveSelectorList,
boolean randomSelection)
UnionMoveSelector
public UnionMoveSelector(List<MoveSelector> childMoveSelectorList,
boolean randomSelection,
SelectionProbabilityWeightFactory selectorProbabilityWeightFactory)
stepStarted
public void stepStarted(AbstractStepScope stepScope)
- Specified by:
stepStarted
in interface SolverPhaseLifecycleListener
- Overrides:
stepStarted
in class AbstractSelector
stepEnded
public void stepEnded(AbstractStepScope stepScope)
- Specified by:
stepEnded
in interface SolverPhaseLifecycleListener
- Overrides:
stepEnded
in class AbstractSelector
isNeverEnding
public boolean isNeverEnding()
- Description copied from interface:
Selector
- Is true if
Selector.isContinuous()
is true
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.
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
.
- Returns:
- the approximate number of elements generated by this
Selector
, always >= 0
iterator
public Iterator<Move> iterator()
toString
public String toString()
- Overrides:
toString
in class CompositeMoveSelector
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