org.eclipse.persistence.jpa
Interface JpaEntityManager

All Superinterfaces:

javax.persistence.EntityManager

public interface JpaEntityManager
extends javax.persistence.EntityManager

Purpose: Defines the Interface for EclipseLink extensions to the EntityManager

See Also:

EntityManager

Method Summary

javax.persistence.Query	createDescriptorNamedQuery(java.lang.String queryName, java.lang.Class descriptorClass) This method will create a query object that wraps a EclipseLink Named Query.
javax.persistence.Query	createDescriptorNamedQuery(java.lang.String queryName, java.lang.Class descriptorClass, java.util.Vector argumentTypes) This method will create a query object that wraps a EclipseLink Named Query.
javax.persistence.Query	createQuery(Expression expression, java.lang.Class resultType) This method is used to create a query using a EclipseLink Expression and the return type.
Session	getActiveSession() This method returns the current session to the requester.
ServerSession	getServerSession() Return the underlying server session
Session	getSession() This method will return a Session outside of a transaction and null within a transaction.
UnitOfWork	getUnitOfWork() This method will return the transactional UnitOfWork during the transaction and null outside of the transaction.

Methods inherited from interface javax.persistence.EntityManager

clear, close, contains, createNamedQuery, createNativeQuery, createNativeQuery, createNativeQuery, createQuery, find, flush, getDelegate, getFlushMode, getReference, getTransaction, isOpen, joinTransaction, lock, merge, persist, refresh, remove, setFlushMode

Method Detail

getActiveSession

Session getActiveSession()

This method returns the current session to the requester. The current session will be a the active UnitOfWork within a transaction and will be a 'scrap' UnitOfWork outside of a transaction. The caller is concerned about the results then the getSession() or getUnitOfWork() API should be called.

getServerSession

ServerSession getServerSession()

Return the underlying server session

getUnitOfWork

UnitOfWork getUnitOfWork()

This method will return the transactional UnitOfWork during the transaction and null outside of the transaction.

getSession

Session getSession()

This method will return a Session outside of a transaction and null within a transaction.

createQuery

javax.persistence.Query createQuery(Expression expression,
                                    java.lang.Class resultType)

This method is used to create a query using a EclipseLink Expression and the return type.

createDescriptorNamedQuery

javax.persistence.Query createDescriptorNamedQuery(java.lang.String queryName,
                                                   java.lang.Class descriptorClass)

This method will create a query object that wraps a EclipseLink Named Query.

createDescriptorNamedQuery

javax.persistence.Query createDescriptorNamedQuery(java.lang.String queryName,
                                                   java.lang.Class descriptorClass,
                                                   java.util.Vector argumentTypes)

This method will create a query object that wraps a EclipseLink Named Query.