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.datanucleus;
023
024import java.util.Map;
025
026import javax.jdo.spi.Detachable;
027import javax.jdo.spi.PersistenceCapable;
028
029import org.granite.logging.Logger;
030import org.granite.messaging.amf.io.util.DefaultClassGetter;
031
032/**
033 * @author William DRAI
034 */
035public class DataNucleusClassGetter extends DefaultClassGetter {
036
037    public final static Logger log = Logger.getLogger(DataNucleusClassGetter.class);
038    
039
040    @Override
041    public Class<?> getClass(Object o) {
042        // Nothing special here: DataNucleus uses bytecode enhancement
043        return super.getClass(o);
044    }
045    
046    @Override
047    public boolean isEntity(Object o) {
048        return o instanceof PersistenceCapable;    
049    }
050    
051    
052    @Override
053    public boolean isInitialized(Object owner, String propertyName, Object propertyValue) {
054        if (propertyValue != null || !(owner instanceof PersistenceCapable))
055                return true;
056        Map<String, Boolean> loadedState = DataNucleusExternalizer.getLoadedState((Detachable)owner, getClass(owner));
057        return loadedState.containsKey(propertyName) && loadedState.get(propertyName);
058    }
059    
060    @Override
061    public void initialize(Object owner, String propertyName, Object propertyValue) {
062        if (propertyValue != null)
063                propertyValue.toString();
064    }
065}