/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2009 by Red Hat Inc and/or its affiliates or by
* third-party contributors as indicated by either @author tags or express
* copyright attribution statements applied by the authors. All
* third-party contributions are distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA\
*/
package org.hibernate.ejb;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.spi.LoadState;
import javax.persistence.spi.PersistenceProvider;
import javax.persistence.spi.PersistenceUnitInfo;
import javax.persistence.spi.ProviderUtil;
import org.hibernate.ejb.util.PersistenceUtilHelper;
/**
* Hibernate EJB3 persistence provider implementation
*
* @author Gavin King
*/
public class HibernatePersistence extends AvailableSettings implements PersistenceProvider {
private final PersistenceUtilHelper.MetadataCache cache = new PersistenceUtilHelper.MetadataCache();
/**
* Get an entity manager factory by its entity manager name, using the specified
* properties (they override any found in the peristence.xml file).
* <p/>
* This is the form used in JSE environments.
*
* @param persistenceUnitName entity manager name
* @param properties The explicit property values
*
* @return initialized EntityManagerFactory
*/
public EntityManagerFactory createEntityManagerFactory(String persistenceUnitName, Map properties) {
Ejb3Configuration cfg = new Ejb3Configuration();
Ejb3Configuration configured = cfg.configure( persistenceUnitName, properties );
return configured != null ? configured.buildEntityManagerFactory() : null;
}
/**
* Create an entity manager factory from the given persistence unit info, using the specified
* properties (they override any on the PUI).
* <p/>
* This is the form used by the container in a JEE environment.
*
* @param info The persistence unit information
* @param properties The explicit property values
*
* @return initialized EntityManagerFactory
*/
public EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info, Map properties) {
Ejb3Configuration cfg = new Ejb3Configuration();
Ejb3Configuration configured = cfg.configure( info, properties );
return configured != null ? configured.buildEntityManagerFactory() : null;
}
/**
* create a factory from a canonical version
* @deprecated
*/
@Deprecated
public EntityManagerFactory createEntityManagerFactory(Map properties) {
// This is used directly by JBoss so don't remove until further notice. bill@jboss.org
Ejb3Configuration cfg = new Ejb3Configuration();
return cfg.createEntityManagerFactory( properties );
}
private final ProviderUtil providerUtil = new ProviderUtil() {
public LoadState isLoadedWithoutReference(Object proxy, String property) {
return PersistenceUtilHelper.isLoadedWithoutReference( proxy, property, cache );
}
public LoadState isLoadedWithReference(Object proxy, String property) {
return PersistenceUtilHelper.isLoadedWithReference( proxy, property, cache );
}
public LoadState isLoaded(Object o) {
return PersistenceUtilHelper.isLoaded(o);
}
};
/**
* {@inheritDoc}
*/
public ProviderUtil getProviderUtil() {
return providerUtil;
}
}