Package ai.timefold.solver.core.impl.domain.variable.anchor

Class AnchorVariableListener<Solution_,Entity_>

java.lang.Object

ai.timefold.solver.core.impl.domain.variable.anchor.AnchorVariableListener<Solution_,Entity_>

Type Parameters:

Solution_ - the solution type, the class with the PlanningSolution annotation

All Implemented Interfaces:

AnchorVariableSupply, InnerBasicVariableListener<Solution_,Entity_>, InnerVariableListener<Solution_,BasicVariableChangeEvent<Entity_>>, Supply, Closeable, AutoCloseable

@NullMarked
public class AnchorVariableListener<Solution_,Entity_>
extends Object
implements InnerBasicVariableListener<Solution_,Entity_>, AnchorVariableSupply

Field Summary

Fields

Modifier and Type	Field	Description
protected final AnchorShadowVariableDescriptor<Solution_>	anchorShadowVariableDescriptor
protected final SingletonInverseVariableSupply	nextVariableSupply
protected final VariableDescriptor<Solution_>	previousVariableDescriptor

Constructor Summary

Constructors

Constructor	Description
AnchorVariableListener(AnchorShadowVariableDescriptor<Solution_> anchorShadowVariableDescriptor, VariableDescriptor<Solution_> previousVariableDescriptor, SingletonInverseVariableSupply nextVariableSupply)

Method Summary

Modifier and Type	Method	Description
void	afterChange(InnerScoreDirector<Solution_,?> scoreDirector, BasicVariableChangeEvent<Entity_> event)
void	beforeChange(InnerScoreDirector<Solution_,?> scoreDirector, BasicVariableChangeEvent<Entity_> event)
Object	getAnchor(Object entity)
protected void	insert(InnerScoreDirector<Solution_,?> scoreDirector, Object entity)
void	resetWorkingSolution(InnerScoreDirector<Solution_,?> scoreDirector)	Called when the entire working solution changes.

Methods inherited from class java.lang.Object

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

Methods inherited from interface ai.timefold.solver.core.impl.domain.variable.InnerVariableListener

close, requiresUniqueEntityEvents

Field Details

anchorShadowVariableDescriptor

protected final AnchorShadowVariableDescriptor<Solution_> anchorShadowVariableDescriptor

previousVariableDescriptor

protected final VariableDescriptor<Solution_> previousVariableDescriptor

nextVariableSupply

protected final SingletonInverseVariableSupply nextVariableSupply

Constructor Details

AnchorVariableListener

public AnchorVariableListener(AnchorShadowVariableDescriptor<Solution_> anchorShadowVariableDescriptor,
 VariableDescriptor<Solution_> previousVariableDescriptor,
 SingletonInverseVariableSupply nextVariableSupply)

Method Details

beforeChange

public void beforeChange(InnerScoreDirector<Solution_,?> scoreDirector,
 BasicVariableChangeEvent<Entity_> event)

Specified by:

beforeChange in interface InnerVariableListener<Solution_,Entity_>

afterChange

public void afterChange(InnerScoreDirector<Solution_,?> scoreDirector,
 BasicVariableChangeEvent<Entity_> event)

Specified by:

afterChange in interface InnerVariableListener<Solution_,Entity_>

insert

protected void insert(InnerScoreDirector<Solution_,?> scoreDirector,
 Object entity)

getAnchor

public Object getAnchor(Object entity)

Specified by:

getAnchor in interface AnchorVariableSupply

Parameters:

entity - never null

Returns:

sometimes null, the anchor for the entity

resetWorkingSolution

public void resetWorkingSolution(InnerScoreDirector<Solution_,?> scoreDirector)

Description copied from interface: InnerVariableListener

Called when the entire working solution changes. In this event, the other before..()/after...() methods will not be called. At this point, implementations should clear state, if any.

Specified by:

resetWorkingSolution in interface InnerVariableListener<Solution_,Entity_>