public class Persistence
extends java.lang.Object
EntityManagerFactory
references.Modifier and Type | Field and Description |
---|---|
static java.lang.String |
PERSISTENCE_PROVIDER |
protected static java.util.Set<PersistenceProvider> |
providers |
Constructor and Description |
---|
Persistence() |
Modifier and Type | Method and Description |
---|---|
static EntityManagerFactory |
createEntityManagerFactory(java.lang.String persistenceUnitName)
Create and return an EntityManagerFactory for the named persistence unit.
|
static EntityManagerFactory |
createEntityManagerFactory(java.lang.String persistenceUnitName,
java.util.Map properties)
Create and return an EntityManagerFactory for the named persistence unit using the
given properties.
|
protected static final java.util.Set<PersistenceProvider> providers
public static final java.lang.String PERSISTENCE_PROVIDER
public static EntityManagerFactory createEntityManagerFactory(java.lang.String persistenceUnitName)
persistenceUnitName
- The name of the persistence unitpublic static EntityManagerFactory createEntityManagerFactory(java.lang.String persistenceUnitName, java.util.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.