org.hibernate.loader.plan.build.internal.returns

Class BidirectionalEntityReferenceImpl

java.lang.Object

org.hibernate.loader.plan.build.internal.returns.BidirectionalEntityReferenceImpl

All Implemented Interfaces:

BidirectionalEntityReference, EntityReference, FetchSource

public class BidirectionalEntityReferenceImpl
extends Object
implements BidirectionalEntityReference

Represents an entity fetch that is bi-directionally join fetched.

For example, consider an Order entity whose primary key is partially made up of the Customer entity to which it is associated. When we join fetch Customer -> Order(s) and then Order -> Customer we have a bi-directional fetch. This class would be used to represent the Order -> Customer part of that link.

Author:

Steve Ebersole

Constructor Summary

Constructors

Constructor and Description
BidirectionalEntityReferenceImpl(ExpandingFetchSource fetchSource, AssociationAttributeDefinition fetchedAttribute, EntityReference targetEntityReference)

Method Summary

Modifier and Type	Method and Description
BidirectionalEntityReference[]	getBidirectionalEntityReferences() Retrieve the bidirectional entity references owned by this fetch source.
EntityPersister	getEntityPersister() Retrieves the EntityPersister describing the entity associated with this Return.
Fetch[]	getFetches() Retrieve the fetches owned by this fetch source.
EntityIdentifierDescription	getIdentifierDescription() Get the description of this entity's identifier descriptor.
PropertyPath	getPropertyPath() Get the property path to this fetch source
String	getQuerySpaceUid() The query space UID returned using BidirectionalEntityReference.getQuerySpaceUid() must be the same as returned by #getTargetEntityReference()#getQuerySpaceUid()
EntityReference	getTargetEntityReference() Get the targeted EntityReference
EntityReference	resolveEntityReference() Resolve the "current" EntityReference, or null if none.

Methods inherited from class java.lang.Object

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

Constructor Detail

BidirectionalEntityReferenceImpl

public BidirectionalEntityReferenceImpl(ExpandingFetchSource fetchSource,
                                        AssociationAttributeDefinition fetchedAttribute,
                                        EntityReference targetEntityReference)

Method Detail

getTargetEntityReference

public EntityReference getTargetEntityReference()

Description copied from interface: BidirectionalEntityReference

Get the targeted EntityReference

Specified by:

getTargetEntityReference in interface BidirectionalEntityReference

Returns:

The targeted EntityReference

getPropertyPath

public PropertyPath getPropertyPath()

Description copied from interface: FetchSource

Get the property path to this fetch source

Specified by:

getPropertyPath in interface FetchSource

Returns:

The property path

getQuerySpaceUid

public String getQuerySpaceUid()

Description copied from interface: BidirectionalEntityReference

The query space UID returned using BidirectionalEntityReference.getQuerySpaceUid() must be the same as returned by #getTargetEntityReference()#getQuerySpaceUid()

Specified by:

getQuerySpaceUid in interface BidirectionalEntityReference

Specified by:

getQuerySpaceUid in interface EntityReference

Specified by:

getQuerySpaceUid in interface FetchSource

Returns:

The query space UID.

getFetches

public Fetch[] getFetches()

Description copied from interface: FetchSource

Retrieve the fetches owned by this fetch source.

Specified by:

getFetches in interface FetchSource

Returns:

The owned fetches.

getBidirectionalEntityReferences

public BidirectionalEntityReference[] getBidirectionalEntityReferences()

Description copied from interface: FetchSource

Retrieve the bidirectional entity references owned by this fetch source.

Specified by:

getBidirectionalEntityReferences in interface FetchSource

Returns:

The owned bidirectional entity references.

resolveEntityReference

public EntityReference resolveEntityReference()

Description copied from interface: FetchSource

Resolve the "current" EntityReference, or null if none. If this object is an EntityReference, then this object is returned; otherwise, if this object is a Fetch, then the nearest EntityReference will be resolved from its source, if possible. If no EntityReference can be resolved, null is return.

Specified by:

resolveEntityReference in interface FetchSource

Returns:

the "current" EntityReference or null if none. .

See Also:

Fetch.getSource().

getEntityPersister

public EntityPersister getEntityPersister()

Description copied from interface: EntityReference

Retrieves the EntityPersister describing the entity associated with this Return.

Specified by:

getEntityPersister in interface EntityReference

Returns:

The EntityPersister.

getIdentifierDescription

public EntityIdentifierDescription getIdentifierDescription()

Description copied from interface: EntityReference

Get the description of this entity's identifier descriptor.

Specified by:

getIdentifierDescription in interface EntityReference

Returns:

The identifier description.