001    /**
002     *   GRANITE DATA SERVICES
003     *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004     *
005     *   This file is part of the Granite Data Services Platform.
006     *
007     *   Granite Data Services is free software; you can redistribute it and/or
008     *   modify it under the terms of the GNU Lesser General Public
009     *   License as published by the Free Software Foundation; either
010     *   version 2.1 of the License, or (at your option) any later version.
011     *
012     *   Granite Data Services is distributed in the hope that it will be useful,
013     *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014     *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015     *   General Public License for more details.
016     *
017     *   You should have received a copy of the GNU Lesser General Public
018     *   License along with this library; if not, write to the Free Software
019     *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020     *   USA, or see <http://www.gnu.org/licenses/>.
021     */
022    package org.granite.hibernate;
023    
024    import java.io.Serializable;
025    
026    import org.hibernate.ObjectNotFoundException;
027    import org.hibernate.Session;
028    import org.hibernate.StaleObjectStateException;
029    import org.hibernate.StaleStateException;
030    
031    /**
032     * @author William DRAI
033     */
034    public class HibernateOptimisticLockException extends StaleStateException {
035    
036            private static final long serialVersionUID = 1L;
037    
038            private Object entity;
039            
040            public HibernateOptimisticLockException(String message, Throwable cause, Object entity) {
041                    super(message);
042                    this.entity = entity;
043            }
044            
045            public Object getEntity() {
046                    return entity;
047            }
048            
049            public static void rethrowOptimisticLockException(Session session, StaleObjectStateException sose) {
050                    Serializable identifier = sose.getIdentifier();
051                    if (identifier != null) {
052                            try {
053                                    Object entity = session.load(sose.getEntityName(), identifier);
054                                    if (entity instanceof Serializable) {
055                                            //avoid some user errors regarding boundary crossing
056                                            throw new HibernateOptimisticLockException(null, sose, entity);
057                                    }
058                            }
059                            catch (ObjectNotFoundException onfe) {
060                                    // Ignored, StaleStateException will be rethrown
061                            }
062                    }
063            }
064    }