org.hibernate.loader.plan.exec.internal

Class CollectionReferenceAliasesImpl

java.lang.Object

org.hibernate.loader.plan.exec.internal.CollectionReferenceAliasesImpl

All Implemented Interfaces:

CollectionReferenceAliases

public class CollectionReferenceAliasesImpl
extends Object
implements CollectionReferenceAliases

Constructor Summary

Constructors

Constructor and Description
CollectionReferenceAliasesImpl(String tableAlias, String manyToManyAssociationTableAlias, CollectionAliases collectionAliases, EntityReferenceAliases entityElementAliases)

Method Summary

Modifier and Type	Method and Description
CollectionAliases	getCollectionColumnAliases() Obtain the aliases for the columns related to the collection structure such as the FK, index/key, or identifier (idbag).
String	getCollectionTableAlias() Obtain the table alias used for the collection table of the CollectionReference.
String	getElementTableAlias() Obtain the alias of the table that contains the collection element values.
EntityReferenceAliases	getEntityElementAliases() Obtain the entity reference aliases for the element values when the element of the collection is an entity.

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionReferenceAliasesImpl

public CollectionReferenceAliasesImpl(String tableAlias,
                                      String manyToManyAssociationTableAlias,
                                      CollectionAliases collectionAliases,
                                      EntityReferenceAliases entityElementAliases)

Method Detail

getCollectionTableAlias

public String getCollectionTableAlias()

Description copied from interface: CollectionReferenceAliases

Obtain the table alias used for the collection table of the CollectionReference.

Specified by:

getCollectionTableAlias in interface CollectionReferenceAliases

Returns:

The collection table alias.

getElementTableAlias

public String getElementTableAlias()

Description copied from interface: CollectionReferenceAliases

Obtain the alias of the table that contains the collection element values.

Unlike in the legacy Loader case, CollectionReferences in the LoadPlan code refer to both the collection and the elements *always*. In Loader the elements were handled by EntityPersister associations entries for one-to-many and many-to-many. In LoadPlan we need to describe the collection table/columns as well as the entity element table/columns. For "basic collections" and one-to-many collections, the "element table" and the "collection table" are actually the same. For the many-to-many case this will be different and we need to track it separately.

Specified by:

getElementTableAlias in interface CollectionReferenceAliases

Returns:

The element table alias. Only different from CollectionReferenceAliases.getCollectionTableAlias() in the case of many-to-many.

getCollectionColumnAliases

public CollectionAliases getCollectionColumnAliases()

Description copied from interface: CollectionReferenceAliases

Obtain the aliases for the columns related to the collection structure such as the FK, index/key, or identifier (idbag).

Specified by:

getCollectionColumnAliases in interface CollectionReferenceAliases

Returns:

The collection column aliases.

getEntityElementAliases

public EntityReferenceAliases getEntityElementAliases()

Description copied from interface: CollectionReferenceAliases

Obtain the entity reference aliases for the element values when the element of the collection is an entity.

Specified by:

getEntityElementAliases in interface CollectionReferenceAliases

Returns:

The entity reference aliases for the entity element; null if the collection element is not an entity.