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 */
022package org.granite.tide.data;
023
024import java.io.Serializable;
025
026
027/**
028 * Responsible for persisting changes in the persistence context
029 * @author William DRAI
030 *
031 */
032public interface TidePersistenceAdapter {
033        
034    /**
035     * Find an entity in the persistence context
036     * Note : MUST NOT return a proxy object but an actual class instance
037     * @param entityClass class of the looked up entity
038     * @param id entity identifier
039     * @return the entity with the persistence context.
040     */
041    public Object find(Class<?> entityClass, Serializable id);
042
043    /**
044     * Throw an optimistic locking error
045     * @param entity entity instance loaded from the database
046     */
047    public void throwOptimisticLockException(Object entity);
048
049}