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oracle.toplink.ejb.cmp3.jdk14
Interface EntityManager

All Superinterfaces:

EntityManager

public interface EntityManager

extends EntityManager

Purpose: Defines the Interface for TopLink extensions to the EntityManager

See Also:

EntityManager

Method Summary

Query	createQuery(Expression expression, java.lang.Class resultType) This method is used to create a query using a Toplink Expression and the return type.
Session	getActiveSession() This method returns the current session to the requestor.
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 oracle.toplink.sessions.entitymanager.EntityManager

close, contains, createNamedQuery, createNativeQuery, createNativeQuery, createNativeQuery, createQuery, find, find, flush, getUserTransaction, isOpen, merge, persist, refresh, remove

Method Detail

getActiveSession

public Session getActiveSession()

This method returns the current session to the requestor. 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 conserned about the results then the getSession() or getUnitOfWork() API should be called.

getUnitOfWork

public UnitOfWork getUnitOfWork()

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

getSession

public Session getSession()

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

createQuery

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

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

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