程序包 org.hibernate.usertype

接口 UserCollectionType

public interface UserCollectionType

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

作者:

Gavin King

另请参阅:

PersistentCollection

方法概要

修饰符和类型	方法	说明
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. accounting for initial size and perhaps load factor).
PersistentCollection	instantiate(SharedSessionContractImplementor session, CollectionPersister persister)	Instantiate an uninitialized instance of the collection wrapper
Object	replaceElements(Object original, Object target, CollectionPersister persister, Object owner, Map copyCache, SharedSessionContractImplementor session)	Replace the elements of a collection with the elements of another collection
PersistentCollection	wrap(SharedSessionContractImplementor session, Object collection)	Wrap an instance of a collection

方法详细资料

instantiate

PersistentCollection instantiate(SharedSessionContractImplementor session,
                                 CollectionPersister persister)
                          throws HibernateException

Instantiate an uninitialized instance of the collection wrapper

抛出:

HibernateException

wrap

PersistentCollection wrap(SharedSessionContractImplementor 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,
                       SharedSessionContractImplementor session)
                throws HibernateException

Replace the elements of a collection with the elements of another collection

抛出:

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).

参数:

anticipatedSize - The anticipated size of the instantiated 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).