/*
* Copyright 2016 Hammock and its contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
*
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ws.ament.hammock.bootstrap.weld.jpa;
import org.jboss.weld.injection.spi.ResourceReference;
import org.jboss.weld.injection.spi.ResourceReferenceFactory;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
/**
* Implementation of {@link ResourceReferenceFactory} to provide {@link EntityManagerFactory} instances
*
* @author Antoine Sabot-Durand
*/
public class EntityManagerFactoryReferenceFactory implements ResourceReferenceFactory<EntityManagerFactory> {
private final String unitName;
EntityManagerFactoryReferenceFactory(String unitName) {
this.unitName = unitName;
}
@Override
public ResourceReference<EntityManagerFactory> createResource() {
return new ResourceReference<EntityManagerFactory>() {
private EntityManagerFactory emf;
@Override
public EntityManagerFactory getInstance() {
if (emf == null)
emf = Persistence.createEntityManagerFactory(unitName);
return emf;
}
@Override
public void release() {
emf.close();
}
};
}
}