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.Externalizable;
025import java.io.IOException;
026import java.io.ObjectInput;
027import java.io.ObjectOutput;
028
029
030/**
031 * @author William DRAI
032 */
033public class CollectionChange implements Externalizable {
034
035    private static final long serialVersionUID = 1L;
036
037    private int type;
038    private Object key;
039    private Object value;
040        
041    
042    public CollectionChange() {
043    }
044    
045    public CollectionChange(int type, Object key, Object value) {
046        this.type = type;
047        this.key = key;
048        this.value = value;
049    }
050
051        public int getType() {
052                return type;
053        }
054
055        public Object getKey() {
056                return key;
057        }
058
059        public Object getValue() {
060                return value;
061        }
062        
063//      public String toString() {
064//              return (type == 1 ? "add" : (type == -1 ? "remove" : "update"))
065//                              + "@" + key + "=" + ChangeSet.valueToString(value);
066//      }
067
068        public void writeExternal(ObjectOutput out) throws IOException {
069                out.writeObject(type);
070                out.writeObject(key);
071                out.writeObject(value);
072        }
073
074        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
075                type = ((Integer)in.readObject());
076                key = in.readObject();
077                value = in.readObject();
078        }
079}