Package ai.timefold.solver.core.impl.move.director

Class EphemeralMoveDirector<Solution_>

java.lang.Object

ai.timefold.solver.core.impl.move.director.MoveDirector<Solution_>

ai.timefold.solver.core.impl.move.director.EphemeralMoveDirector<Solution_>

Type Parameters:

Solution_ -

All Implemented Interfaces:

InnerMutableSolutionView<Solution_>, MutableSolutionView<Solution_>, Rebaser, SolutionView<Solution_>, AutoCloseable

public final class EphemeralMoveDirector<Solution_>
extends MoveDirector<Solution_>
implements AutoCloseable

The only move director that supports undoing moves. Moves are undone when the director is closed.

Field Summary

Fields inherited from class ai.timefold.solver.core.impl.move.director.MoveDirector

scoreDirector

Method Summary

Modifier and Type	Method	Description
void	close()
Move<Solution_>	createUndoMove()
EphemeralMoveDirector<Solution_>	ephemeral()	Moves that are to be undone later need to be run with the instance returned by this method.
<Entity_, Value_> @NonNull ElementLocation	getPositionOf(@NonNull PlanningListVariableMetaModel<Solution_,Entity_,Value_> variableMetaModel, @NonNull Value_ value)	Locates a given value in any @list planning variable.
VariableChangeRecordingScoreDirector<Solution_>	getVariableChangeRecordingScoreDirector()

Methods inherited from class ai.timefold.solver.core.impl.move.director.MoveDirector

changeVariable, getPositionOf, getScoreDirector, getValue, getValueAtIndex, moveValueBetweenLists, moveValueInList, rebase, updateShadowVariables

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

createUndoMove

public Move<Solution_> createUndoMove()

getPositionOf

public <Entity_,
Value_> @NonNull ElementLocation getPositionOf(@NonNull PlanningListVariableMetaModel<Solution_,Entity_,Value_> variableMetaModel,
 @NonNull Value_ value)

Description copied from interface: SolutionView

Locates a given value in any @list planning variable.

Specified by:

getPositionOf in interface SolutionView<Solution_>

Overrides:

getPositionOf in class MoveDirector<Solution_>

Parameters:

variableMetaModel - Describes the variable whose value is to be read.

value - The value to locate.

Returns:

never null; the location of the value in the variable

getVariableChangeRecordingScoreDirector

public VariableChangeRecordingScoreDirector<Solution_> getVariableChangeRecordingScoreDirector()

ephemeral

public EphemeralMoveDirector<Solution_> ephemeral()

Description copied from class: MoveDirector

Moves that are to be undone later need to be run with the instance returned by this method.

Overrides:

ephemeral in class MoveDirector<Solution_>

Returns:

never null

close

public void close()

Specified by:

close in interface AutoCloseable