当前页面: 在线文档首页 > Hibernate 3.2.4 正式版 API 英文文档

CustomCollectionType (Hibernate API Documentation) - Hibernate 3.2.4 正式版 API 英文文档

Overview  Package   Class  Use  Tree  Deprecated  Index  Help
PREV CLASS   NEXT CLASS	FRAMES    NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

org.hibernate.type
Class CustomCollectionType

java.lang.Object
  org.hibernate.type.AbstractType
      org.hibernate.type.CollectionType
          org.hibernate.type.CustomCollectionType

All Implemented Interfaces:

AssociationType, Serializable, Type

---

public class CustomCollectionType

extends CollectionType

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

Author:

Gavin King

See Also:

PersistentCollection, UserCollectionType, Serialized Form

---

Field Summary

 

Fields inherited from class org.hibernate.type.CollectionType

UNFETCHED_COLLECTION

 

Constructor Summary

CustomCollectionType(Class userTypeClass, String role, String foreignKeyPropertyName, boolean isEmbeddedInXML)

 

Method Summary
boolean	contains(Object collection, Object entity, SessionImplementor session)
Iterator	getElementsIterator(Object collection)           Get an iterator over the element set of the collection in POJO mode
Class	getReturnedClass()           The class returned by nullSafeGet() methods.
UserCollectionType	getUserType()
Object	indexOf(Object collection, Object entity)
Object	instantiate(int anticipatedType)           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, Serializable key)           Instantiate an uninitialized collection wrapper or holder.
protected  String	renderLoggableString(Object value, SessionFactoryImplementor factory)
Object	replaceElements(Object original, Object target, 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 the naked collection instance in a wrapper, or instantiate a holder.

 

Methods inherited from class org.hibernate.type.CollectionType

assemble, compare, deepCopy, disassemble, fromXMLNode, getAssociatedEntityName, getAssociatedJoinable, getCollection, getColumnSpan, getElementsIterator, getElementType, getForeignKeyDirection, getHashCode, getKeyOfOwner, getLHSPropertyName, getName, getOnCondition, getRHSUniqueKeyPropertyName, getRole, hasHolder, hydrate, initializeImmediately, instantiateResult, isAlwaysDirtyChecked, isArrayType, isAssociationType, isCollectionType, isDirty, isDirty, isEmbeddedInXML, isEqual, isModified, isMutable, isXMLElement, nullSafeGet, nullSafeGet, nullSafeSet, nullSafeSet, replace, resolve, semiResolve, setToXMLNode, sqlTypes, toColumnNullness, toLoggableString, toString, useLHSPrimaryKey

 

Methods inherited from class org.hibernate.type.AbstractType

beforeAssemble, getHashCode, getSemiResolvedType, isAnyType, isComponentType, isEntityType, isEqual, isSame, replace, replaceNode

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface org.hibernate.type.Type

beforeAssemble, getHashCode, getSemiResolvedType, isAnyType, isComponentType, isEntityType, isEqual, isSame, replace

 

Constructor Detail

CustomCollectionType

public CustomCollectionType(Class userTypeClass,
                            String role,
                            String foreignKeyPropertyName,
                            boolean isEmbeddedInXML)

Method Detail

instantiate

public PersistentCollection instantiate(SessionImplementor session,
                                        CollectionPersister persister,
                                        Serializable key)
                                 throws HibernateException

Description copied from class: CollectionType

Instantiate an uninitialized collection wrapper or holder. Callers MUST add the holder to the persistence context!

Specified by:

instantiate in class CollectionType

Parameters:

session - The session from which the request is originating.

persister - The underlying collection persister (metadata)

key - The owner key.

Returns:

The instantiated collection.

Throws:

HibernateException

---

wrap

public PersistentCollection wrap(SessionImplementor session,
                                 Object collection)

Description copied from class: CollectionType

Wrap the naked collection instance in a wrapper, or instantiate a holder. Callers MUST add the holder to the persistence context!

Specified by:

wrap in class CollectionType

Parameters:

session - The session from which the request is originating.

collection - The bare collection to be wrapped.

Returns:

The wrapped collection.

---

getReturnedClass

public Class getReturnedClass()

Description copied from interface: Type

The class returned by nullSafeGet() methods. This is used to establish the class of an array of this type.

Returns:

Class

---

instantiate

public Object instantiate(int anticipatedType)

Description copied from class: CollectionType

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

Specified by:

instantiate in class CollectionType

Parameters:

anticipatedType - The anticipated size of the instaniated collection after we are done populating it.

Returns:

A newly instantiated collection to be wrapped.

---

getElementsIterator

public Iterator getElementsIterator(Object collection)

Description copied from class: CollectionType

Get an iterator over the element set of the collection in POJO mode

Overrides:

getElementsIterator in class CollectionType

Parameters:

collection - The collection to be iterated

Returns:

The iterator.

---

contains

public boolean contains(Object collection,
                        Object entity,
                        SessionImplementor session)

Overrides:

contains in class CollectionType

---

indexOf

public Object indexOf(Object collection,
                      Object entity)

Overrides:

indexOf in class CollectionType

---

replaceElements

public Object replaceElements(Object original,
                              Object target,
                              Object owner,
                              Map copyCache,
                              SessionImplementor session)
                       throws HibernateException

Description copied from class: CollectionType

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

Overrides:

replaceElements in class CollectionType

Parameters:

original - The 'source' of the replacement elements (where we copy from)

target - The target of the replacement elements (where we copy to)

owner - The owner of the collection being merged

copyCache - The map of elements already replaced.

session - The session from which the merge event originated.

Returns:

The merged collection.

Throws:

HibernateException

---

renderLoggableString

protected String renderLoggableString(Object value,
                                      SessionFactoryImplementor factory)
                               throws HibernateException

Overrides:

renderLoggableString in class CollectionType

Throws:

HibernateException

---

getUserType

public UserCollectionType getUserType()

---

Overview  Package   Class  Use  Tree  Deprecated  Index  Help
PREV CLASS   NEXT CLASS	FRAMES    NO FRAMES
SUMMARY: NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---