org.hibernate.usertype
Interface UserCollectionType


public interface UserCollectionType

A custom type for mapping user-written classes that implement PersistentCollection

Author:
Gavin King
See Also:
PersistentCollection

Method Summary
 boolean contains(Object collection, Object entity)
          Optional operation.
 Iterator getElementsIterator(Object collection)
          Return an iterator over the elements of this collection - the passed collection instance may or may not be a wrapper
 Object indexOf(Object collection, Object entity)
          Optional operation.
 Object instantiate(int anticipatedSize)
          Instantiate an empty instance of the "underlying" collection (not a wrapper), but with the given anticipated size (i.e.
 PersistentCollection instantiate(SessionImplementor session, CollectionPersister persister)
          Instantiate an uninitialized instance of the collection wrapper
 Object replaceElements(Object original, Object target, CollectionPersister persister, Object owner, Map copyCache, SessionImplementor session)
          Replace the elements of a collection with the elements of another collection
 PersistentCollection wrap(SessionImplementor session, Object collection)
          Wrap an instance of a collection
 

Method Detail

instantiate

PersistentCollection instantiate(SessionImplementor session,
                                 CollectionPersister persister)
                                 throws HibernateException
Instantiate an uninitialized instance of the collection wrapper

Throws:
HibernateException

wrap

PersistentCollection wrap(SessionImplementor session,
                          Object collection)
Wrap an instance of a collection


getElementsIterator

Iterator getElementsIterator(Object collection)
Return an iterator over the elements of this collection - the passed collection instance may or may not be a wrapper


contains

boolean contains(Object collection,
                 Object entity)
Optional operation. Does the collection contain the entity instance?


indexOf

Object indexOf(Object collection,
               Object entity)
Optional operation. Return the index of the entity in the collection.


replaceElements

Object replaceElements(Object original,
                       Object target,
                       CollectionPersister persister,
                       Object owner,
                       Map copyCache,
                       SessionImplementor session)
                       throws HibernateException
Replace the elements of a collection with the elements of another collection

Throws:
HibernateException

instantiate

Object instantiate(int anticipatedSize)
Instantiate an empty instance of the "underlying" collection (not a wrapper), but with the given anticipated size (i.e. accounting for initial size and perhaps load factor).

Parameters:
anticipatedSize - The anticipated size of the instaniated collection after we are done populating it. Note, may be negative to indicate that we not yet know anything about the anticipated size (i.e., when initializing from a result set row by row).


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