nl.knowledgeplaza.util.jpa
Class EntityManagerFinder

java.lang.Object
  nl.knowledgeplaza.util.jpa.EntityManagerFinder

Direct Known Subclasses:

EntityManagerFinderSingleton, EntityManagerFinderThread

public abstract class EntityManagerFinder
extends java.lang.Object

EntityManagerFinder is used to get the appropriate EntityManager from anywhere. Only once instance of an EntityManagerFinder implementation should be instantiated. This instance will then be registered as the EntityManagerFinder, for example: org.tbee.util.jpa.EntityManagerFinderThread.register(); When a EntityManager is needed, the static method getEntityManager of EntityManagerFinder can be called. This method will use the registered EntityManagerFinder to find the EntityManager. EntityManager lEntityManager = org.tbee.util.jpa.EntityManagerFinder.findEntityManager();

Version:

$Revision: 1.4 $

Constructor Summary

EntityManagerFinder()

Method Summary

static javax.persistence.EntityManager	find()
static javax.persistence.EntityManager	find(java.lang.Object context)
static javax.persistence.EntityManager	findEntityManager() Deprecated.
static java.lang.Object	getEMAssociation(javax.persistence.EntityManager em, java.lang.Object key)
static java.lang.Object	getEMAssociation(java.lang.Object key)
abstract javax.persistence.EntityManager	getEntityManager(java.lang.Object context)
static EntityManagerFinder	getEntityManagerFinder()
static java.lang.Object	removeAssociation(java.lang.Object key)
static java.lang.Object	removeEMAssociation(javax.persistence.EntityManager em, java.lang.Object key)
static java.lang.Object	setEMAssociation(javax.persistence.EntityManager em, java.lang.Object key, java.lang.Object o)
static java.lang.Object	setEMAssociation(java.lang.Object key, java.lang.Object o)
protected static void	setEntityManagerFinder(EntityManagerFinder value)

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityManagerFinder

public EntityManagerFinder()

Method Detail

getEntityManager

public abstract javax.persistence.EntityManager getEntityManager(java.lang.Object context)

find

public static javax.persistence.EntityManager find(java.lang.Object context)

find

public static javax.persistence.EntityManager find()

findEntityManager

public static javax.persistence.EntityManager findEntityManager()

Deprecated.

setEntityManagerFinder

protected static void setEntityManagerFinder(EntityManagerFinder value)

getEntityManagerFinder

public static EntityManagerFinder getEntityManagerFinder()

setEMAssociation

public static java.lang.Object setEMAssociation(javax.persistence.EntityManager em,
                                                java.lang.Object key,
                                                java.lang.Object o)

Parameters:

em -

key -

o -

Returns:

setEMAssociation

public static java.lang.Object setEMAssociation(java.lang.Object key,
                                                java.lang.Object o)

getEMAssociation

public static java.lang.Object getEMAssociation(javax.persistence.EntityManager em,
                                                java.lang.Object key)

Parameters:

em -

key -

Returns:

getEMAssociation

public static java.lang.Object getEMAssociation(java.lang.Object key)

removeEMAssociation

public static java.lang.Object removeEMAssociation(javax.persistence.EntityManager em,
                                                   java.lang.Object key)

removeAssociation

public static java.lang.Object removeAssociation(java.lang.Object key)