public class Persistence extends Object
EntityManagerFactory
in Java SE environments.
The Persistence
class is available in a Java EE
container environment as well; however, support for the Java SE
bootstrapping APIs is not required in container environments.
The Persistence
class is used to obtain a PersistenceUtil
instance in both
Java EE and Java SE environments.
Modifier and Type | Field and Description |
---|---|
static String |
PERSISTENCE_PROVIDER
Deprecated.
|
protected static Set<PersistenceProvider> |
providers
Deprecated.
|
Constructor and Description |
---|
Persistence() |
Modifier and Type | Method and Description |
---|---|
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.
|
static PersistenceUtil |
getPersistenceUtil()
Return the PersistenceUtil instance
|
@Deprecated public static final String PERSISTENCE_PROVIDER
@Deprecated protected static final Set<PersistenceProvider> providers
public static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName)
persistenceUnitName
- the name of the persistence unitpublic static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName, Map properties)
persistenceUnitName
- the name of the persistence unitproperties
- Additional properties to use when creating the factory. The
values of these properties override any values that may have
been configured elsewhere.public static PersistenceUtil getPersistenceUtil()
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