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.datanucleus;
023    
024    import java.util.Map;
025    
026    import javax.jdo.spi.Detachable;
027    import javax.jdo.spi.PersistenceCapable;
028    
029    import org.granite.logging.Logger;
030    import org.granite.messaging.amf.io.util.DefaultClassGetter;
031    
032    /**
033     * @author William DRAI
034     */
035    public 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    }