Java EE 5 SDK

javax.persistence
Class Persistence

java.lang.Object
  extended by javax.persistence.Persistence

public class Persistence
extends Object

Bootstrap class that is used to obtain an EntityManagerFactory.

Since:
Java Persistence 1.0

Field Summary
static String PERSISTENCE_PROVIDER
           
protected static Set<PersistenceProvider> providers
           
 
Constructor Summary
Persistence()
           
 
Method Summary
static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName)
          Create and return an EntityManagerFactory for the named persistence unit.
static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName, Map properties)
          Create and return an EntityManagerFactory for the named persistence unit using the given properties.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

PERSISTENCE_PROVIDER

public static String PERSISTENCE_PROVIDER

providers

protected static final Set<PersistenceProvider> providers
Constructor Detail

Persistence

public Persistence()
Method Detail

createEntityManagerFactory

public static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName)
Create and return an EntityManagerFactory for the named persistence unit.

Parameters:
persistenceUnitName - The name of the persistence unit
Returns:
The factory that creates EntityManagers configured according to the specified persistence unit

createEntityManagerFactory

public static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName,
                                                              Map properties)
Create and return an EntityManagerFactory for the named persistence unit using the given properties.

Parameters:
persistenceUnitName - The name of the persistence unit
properties - Additional properties to use when creating the factory. The values of these properties override any values that may have been configured elsewhere.
Returns:
The factory that creates EntityManagers configured according to the specified persistence unit.

Java EE 5 SDK

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