org.spicefactory.pimento.property
Class AbstractAssociationHandler

java.lang.Object
  org.spicefactory.pimento.property.AbstractAssociationHandler

All Implemented Interfaces:

PropertyHandler

Direct Known Subclasses:

AbstractCollectionHandler, AssociationHandler

public abstract class AbstractAssociationHandler
extends Object
implements PropertyHandler

Base class for property handlers that manage associations to other entities.

Author:

Jens Halm

Field Summary

protected Property

property

Constructor Summary

AbstractAssociationHandler()

Method Summary

protected Entity	entityForInstance(Object instance) Returns the entity metamodel for the specified entity.
protected Entity	entityForSnapshot(EntitySnapshot snapshot) Returns the entity metamodel for the specified snapshot.
protected boolean	equals(EntitySnapshot newValue, Object oldValue) Determines whether the specified snapshot represents the given entity.
TypeHierarchy	getAssociationModel() Returns the type hierarchy for the polymorphic association.
protected FetchPlan	getFetchPlan(FetchMode fetchMode) Returns the FetchPlan for the specified FetchMode.
void	init(Property property)
void	setAssociationModel(TypeHierarchy associationModel) Sets the type hierarchy for the polymorphic association.
void	setValue(Object entity, Object value) Sets the specified property value of the given entity.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.spicefactory.pimento.property.PropertyHandler

getValueForSnapshot, prepareValueFromSnapshot

Field Detail

property

protected Property property

Constructor Detail

AbstractAssociationHandler

public AbstractAssociationHandler()

Method Detail

init

public void init(Property property)

Specified by:

init in interface PropertyHandler

getAssociationModel

public TypeHierarchy getAssociationModel()

Returns the type hierarchy for the polymorphic association.

Returns:

the type hierarchy for the polymorphic association

setAssociationModel

public void setAssociationModel(TypeHierarchy associationModel)

Sets the type hierarchy for the polymorphic association.

Parameters:

associationModel - the type hierarchy for the polymorphic association

setValue

public void setValue(Object entity,
                     Object value)

Description copied from interface: PropertyHandler

Sets the specified property value of the given entity. This method can safely assume that the value has been property prepared (possibly converted) with the prepareValueFromSnapshot method of this class before this method gets invoked.

Specified by:

setValue in interface PropertyHandler

Parameters:

entity - the entity to set the property for

value - the new value for the property

entityForInstance

protected Entity entityForInstance(Object instance)

Returns the entity metamodel for the specified entity.

Parameters:

instance - the entity to return the metamodel for

Returns:

the metamodel for the specified entity

Throws:

IllegalArgumentException - if the instance type does not correspond to the entity type mapped by this property

entityForSnapshot

protected Entity entityForSnapshot(EntitySnapshot snapshot)

Returns the entity metamodel for the specified snapshot.

Parameters:

snapshot - the snapshot to return the entity metamodel for

Returns:

the entity metamodel for the specified snapshot

Throws:

IllegalArgumentException - if the snapshot does not correspond to the entity type mapped by this property

getFetchPlan

protected FetchPlan getFetchPlan(FetchMode fetchMode)

Returns the FetchPlan for the specified FetchMode.

Parameters:

fetchMode - the FetchMode to return the FetchPlan for

Returns:

the FetchPlan for the specified FetchMode

equals

protected boolean equals(EntitySnapshot newValue,
                         Object oldValue)

Determines whether the specified snapshot represents the given entity.

Parameters:

newValue - the snapshot to compare

oldValue - the entity to compare

Returns:

true if the specified snapshot represents the given entity