/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2013, Red Hat Inc. or third-party contributors as
* indicated by the @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.jpa.graph.internal.advisor;
import org.hibernate.LockMode;
import org.hibernate.engine.FetchStrategy;
import org.hibernate.engine.FetchStyle;
import org.hibernate.engine.FetchTiming;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.jpa.graph.spi.AttributeNodeImplementor;
import org.hibernate.jpa.internal.metamodel.Helper;
import org.hibernate.loader.plan.spi.CollectionFetch;
import org.hibernate.loader.plan.spi.CompositeFetch;
import org.hibernate.loader.plan.spi.EntityFetch;
import org.hibernate.loader.plan.spi.Fetch;
import org.hibernate.loader.plan.spi.FetchOwner;
import org.hibernate.type.EntityType;
/**
* @author Steve Ebersole
*/
public class AdviceHelper {
private AdviceHelper() {
}
static Fetch buildFetch(FetchOwner fetchOwner, AttributeNodeImplementor attributeNode) {
if ( attributeNode.getAttribute().isAssociation() ) {
if ( attributeNode.getAttribute().isCollection() ) {
return new CollectionFetch(
(SessionFactoryImplementor) attributeNode.entityManagerFactory().getSessionFactory(),
LockMode.NONE,
fetchOwner,
new FetchStrategy( FetchTiming.IMMEDIATE, FetchStyle.SELECT ),
attributeNode.getAttributeName()
);
}
else {
return new EntityFetch(
(SessionFactoryImplementor) attributeNode.entityManagerFactory().getSessionFactory(),
LockMode.NONE,
fetchOwner,
attributeNode.getAttributeName(),
new FetchStrategy( FetchTiming.IMMEDIATE, FetchStyle.SELECT )
);
}
}
else {
return new CompositeFetch(
(SessionFactoryImplementor) attributeNode.entityManagerFactory().getSessionFactory(),
fetchOwner,
attributeNode.getAttributeName()
);
}
}
}