/*
 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
 * the spring framework, http://el4j.sf.net
 * Copyright (C) 2006 by ELCA Informatique SA, Av. de la Harpe 22-24,
 * 1000 Lausanne, Switzerland, http://www.elca.ch
 *
 * EL4J is published under the GNU General Public License (GPL) Version 2.0.
 * http://www.gnu.org/licenses/
 *
 * 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 General Public License for more details.
 *
 * For alternative licensing, please contact info@elca.ch
 */
package ch.elca.el4j.services.persistence.hibernate;

import java.lang.reflect.Field;

import org.hibernate.collection.PersistentCollection;
import org.hibernate.proxy.HibernateProxy;

public class HibernateProxyAwareIdentityFixerPrototype 
     extends IdentityFixerPrototype {

    @Override
    Object id(Object o) {
        Field f = null; // fetch id property
        // make f accesible
        try {
            return f.get(o);
        } catch (IllegalAccessException e) { throw new RuntimeException(e); }
    }

    @Override
    boolean isMaterialized(Object o) {
        return o instanceof HibernateProxy
            || o instanceof PersistentCollection;
    }
}