org.hibernate.type.EmbeddedComponentType Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, 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.type;
import java.lang.reflect.Method;
import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.tuple.component.ComponentMetamodel;
/**
* @author Gavin King
*/
public class EmbeddedComponentType extends ComponentType {
public EmbeddedComponentType(TypeFactory.TypeScope typeScope, ComponentMetamodel metamodel) {
super( typeScope, metamodel );
}
public boolean isEmbedded() {
return true;
}
public boolean isMethodOf(Method method) {
return componentTuplizer.isMethodOf( method );
}
public Object instantiate(Object parent, SessionImplementor session) throws HibernateException {
final boolean useParent = parent!=null &&
//TODO: Yuck! This is not quite good enough, it's a quick
//hack around the problem of having a to-one association
//that refers to an embedded component:
super.getReturnedClass().isInstance(parent);
return useParent ? parent : super.instantiate(parent, session);
}
}