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Persistence (Java EE 5 SDK) - Java Platform, Enterprise Edition v5.0 API Specifications

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javax.persistence
Class Persistence

java.lang.Object
  javax.persistence.Persistence

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public class Persistence
extends Object

Bootstrap class that is used to obtain an EntityManagerFactory.

Since:

Java Persistence 1.0

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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

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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

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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.

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