/*
* 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.loader.plan.exec.process.internal;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.hibernate.AssertionFailure;
import org.hibernate.engine.spi.EntityKey;
import org.hibernate.loader.plan.exec.process.spi.ResultSetProcessingContext;
import org.hibernate.loader.plan.exec.process.spi.ReturnReader;
import org.hibernate.loader.plan.spi.EntityReturn;
import org.hibernate.proxy.HibernateProxy;
import static org.hibernate.loader.plan.exec.process.spi.ResultSetProcessingContext.EntityReferenceProcessingState;
/**
* @author Steve Ebersole
*/
public class EntityReturnReader implements ReturnReader {
private final EntityReturn entityReturn;
public EntityReturnReader(EntityReturn entityReturn) {
this.entityReturn = entityReturn;
}
public EntityReferenceProcessingState getIdentifierResolutionContext(ResultSetProcessingContext context) {
final EntityReferenceProcessingState entityReferenceProcessingState = context.getProcessingState( entityReturn );
if ( entityReferenceProcessingState == null ) {
throw new AssertionFailure(
String.format(
"Could not locate EntityReferenceProcessingState for root entity return [%s (%s)]",
entityReturn.getPropertyPath().getFullPath(),
entityReturn.getEntityPersister().getEntityName()
)
);
}
return entityReferenceProcessingState;
}
@Override
public Object read(ResultSet resultSet, ResultSetProcessingContext context) throws SQLException {
final EntityReferenceProcessingState processingState = getIdentifierResolutionContext( context );
final EntityKey entityKey = processingState.getEntityKey();
final Object entityInstance = context.getProcessingState( entityReturn ).getEntityInstance();
if ( context.shouldReturnProxies() ) {
final Object proxy = context.getSession().getPersistenceContext().proxyFor(
entityReturn.getEntityPersister(),
entityKey,
entityInstance
);
if ( proxy != entityInstance ) {
( (HibernateProxy) proxy ).getHibernateLazyInitializer().setImplementation( proxy );
return proxy;
}
}
return entityInstance;
}
}