EDIT

/**

* Copyright (C) 2007 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.cdm.persistence.hibernate;

import java.util.Set;

import org.apache.log4j.Logger;

import org.hibernate.HibernateException;

import org.hibernate.event.spi.DeleteEvent;

import org.hibernate.event.spi.DeleteEventListener;

import eu.etaxonomy.cdm.model.common.RelationshipBase;

/**

 * @author a.mueller

 * @created 04.03.2009

 * @version 1.0

 */

public class CdmDeleteListener implements DeleteEventListener {

    private static final long serialVersionUID = -5511287200489449838L;

    protected static final Logger logger = Logger.getLogger(CdmDeleteListener.class);

    @Override

    public void onDelete(DeleteEvent event) throws HibernateException {

        Object entity = event.getObject();

        if(entity != null && RelationshipBase.class.isAssignableFrom(entity.getClass())) {

            logger.info("Deleting " + entity);

            deleteRelationship(event, entity);

        }

    }

    @Override

    public void onDelete(DeleteEvent event, Set transientEntities)throws HibernateException {

        Object entity = event.getObject();

        if(entity != null && RelationshipBase.class.isAssignableFrom(entity.getClass())) {

            logger.info("Deleting " + entity);

            deleteRelationship(event, entity);

        }

    }

    /**

     * @param event

     * @param entity

     */

     private void deleteRelationship(DeleteEvent event, Object entity) {

        RelationshipBase relationshipEntity = (RelationshipBase)entity;

      /*  if (relationshipEntity.isRemoved()){

            Set<IRelated> deletedObjects = relationshipEntity.getDeletedObjects();

            for (IRelated rel : deletedObjects){

                if (rel != null){

                    logger.info("Updating related entity " + rel);

                    Object o = CdmBase.deproxy(rel, CdmBase.class);

                    EntityEntry entry = event.getSession().getPersistenceContext().getEntry(o);

                    if (entry == null){

//						System.out.println();

                    }

                    if (!entry.getStatus().equals(Status.DELETED)){

                        event.getSession().update(rel);

                    }

                }

            }

        }*/

    }

}