IT. Expert System.

Java Enterprise Edition (EE)

PersistenceProvider


javax.persistence.spi
Interface PersistenceProvider

public interface PersistenceProvider

Interface implemented by the persistence provider.

It is invoked by the container in Java EE environments and by the Persistence class in Java SE environments to create an EntityManagerFactory.

Since:
Java Persistence 1.0

Method Summary
 EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info, java.util.Map map)
          Called by the container when an EntityManagerFactory is to be created.
 EntityManagerFactory createEntityManagerFactory(java.lang.String emName, java.util.Map map)
          Called by Persistence class when an EntityManagerFactory is to be created.
 ProviderUtil getProviderUtil()
          Return the utility interface implemented by the persistence provider.
 

Method Detail

createEntityManagerFactory

EntityManagerFactory createEntityManagerFactory(java.lang.String emName,
                                                java.util.Map map)
Called by Persistence class when an EntityManagerFactory is to be created.

Parameters:
emName - the name of the persistence unit
map - a Map of properties for use by the persistence provider. These properties may be used to override the values of the corresponding elements in the persistence.xml file or specify values for properties not specified in the persistence.xml (and may be null if no properties are specified).
Returns:
EntityManagerFactory for the persistence unit, or null if the provider is not the right provider

createContainerEntityManagerFactory

EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info,
                                                         java.util.Map map)
Called by the container when an EntityManagerFactory is to be created.

Parameters:
info - metadata for use by the persistence provider
map - a Map of integration-level properties for use by the persistence provider (may be null if no properties are specified). If a Bean Validation provider is present in the classpath, the container must pass the ValidatorFactory instance in the map with the key "javax.persistence.validation.factory".
Returns:
EntityManagerFactory for the persistence unit specified by the metadata

getProviderUtil

ProviderUtil getProviderUtil()
Return the utility interface implemented by the persistence provider.

Returns:
ProviderUtil interface
Since:
Java Persistence 2.0


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