Package org.optaplanner.core.impl.domain.variable.inverserelation

Class SingletonInverseVariableListener

java.lang.Object

org.optaplanner.core.impl.domain.variable.inverserelation.SingletonInverseVariableListener

All Implemented Interfaces:

Closeable, AutoCloseable, VariableListener<Object>, SingletonInverseVariableSupply, VariableListener<Object>, Supply

public class SingletonInverseVariableListener
extends Object
implements VariableListener<Object>, SingletonInverseVariableSupply

Field Summary

Fields

Modifier and Type	Field	Description
protected InverseRelationShadowVariableDescriptor	shadowVariableDescriptor
protected VariableDescriptor	sourceVariableDescriptor

Constructor Summary

Constructors

Constructor	Description
SingletonInverseVariableListener(InverseRelationShadowVariableDescriptor shadowVariableDescriptor, VariableDescriptor sourceVariableDescriptor)

Method Summary

Modifier and Type	Method	Description
void	afterEntityAdded(ScoreDirector scoreDirector, Object entity)
void	afterEntityRemoved(ScoreDirector scoreDirector, Object entity)
void	afterVariableChanged(ScoreDirector scoreDirector, Object entity)
void	beforeEntityAdded(ScoreDirector scoreDirector, Object entity)
void	beforeEntityRemoved(ScoreDirector scoreDirector, Object entity)
void	beforeVariableChanged(ScoreDirector scoreDirector, Object entity)
Object	getInverseSingleton(Object planningValue)	If entity1.varA = x then the inverse of x is entity1.
protected void	insert(ScoreDirector scoreDirector, Object entity)
protected void	retract(ScoreDirector scoreDirector, Object entity)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.optaplanner.core.api.domain.variable.VariableListener

close, resetWorkingSolution

Methods inherited from interface org.optaplanner.core.impl.domain.variable.listener.VariableListener

requiresUniqueEntityEvents

Field Detail

shadowVariableDescriptor

protected final InverseRelationShadowVariableDescriptor shadowVariableDescriptor

sourceVariableDescriptor

protected final VariableDescriptor sourceVariableDescriptor

Constructor Detail

SingletonInverseVariableListener

public SingletonInverseVariableListener(InverseRelationShadowVariableDescriptor shadowVariableDescriptor,
                                        VariableDescriptor sourceVariableDescriptor)

Method Detail

beforeEntityAdded

public void beforeEntityAdded(ScoreDirector scoreDirector,
                              Object entity)

Specified by:

beforeEntityAdded in interface VariableListener<Object>

Specified by:

beforeEntityAdded in interface VariableListener<Object>

Parameters:

scoreDirector - never null

entity - never null

afterEntityAdded

public void afterEntityAdded(ScoreDirector scoreDirector,
                             Object entity)

Specified by:

afterEntityAdded in interface VariableListener<Object>

Specified by:

afterEntityAdded in interface VariableListener<Object>

Parameters:

scoreDirector - never null

entity - never null

beforeVariableChanged

public void beforeVariableChanged(ScoreDirector scoreDirector,
                                  Object entity)

Specified by:

beforeVariableChanged in interface VariableListener<Object>

Specified by:

beforeVariableChanged in interface VariableListener<Object>

Parameters:

scoreDirector - never null

entity - never null

afterVariableChanged

public void afterVariableChanged(ScoreDirector scoreDirector,
                                 Object entity)

Specified by:

afterVariableChanged in interface VariableListener<Object>

Specified by:

afterVariableChanged in interface VariableListener<Object>

Parameters:

scoreDirector - never null

entity - never null

beforeEntityRemoved

public void beforeEntityRemoved(ScoreDirector scoreDirector,
                                Object entity)

Specified by:

beforeEntityRemoved in interface VariableListener<Object>

Specified by:

beforeEntityRemoved in interface VariableListener<Object>

Parameters:

scoreDirector - never null

entity - never null

afterEntityRemoved

public void afterEntityRemoved(ScoreDirector scoreDirector,
                               Object entity)

Specified by:

afterEntityRemoved in interface VariableListener<Object>

Specified by:

afterEntityRemoved in interface VariableListener<Object>

Parameters:

scoreDirector - never null

entity - never null

insert

protected void insert(ScoreDirector scoreDirector,
                      Object entity)

retract

protected void retract(ScoreDirector scoreDirector,
                       Object entity)

getInverseSingleton

public Object getInverseSingleton(Object planningValue)

Description copied from interface: SingletonInverseVariableSupply

If entity1.varA = x then the inverse of x is entity1.

Specified by:

getInverseSingleton in interface SingletonInverseVariableSupply

Parameters:

planningValue - never null

Returns:

sometimes null, an entity for which the planning variable is the planningValue.