Change.java

/**
 * This file is part of CloudML [ http://cloudml.org ]
 *
 * Copyright (C) 2012 - SINTEF ICT
 * Contact: Franck Chauvel <franck.chauvel@sintef.no>
 *
 * Module: root
 *
 * CloudML is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * CloudML is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General
 * Public License along with CloudML. If not, see
 * <http://www.gnu.org/licenses/>.
 */
package org.cloudml.mrt.cmd.abstracts;

public class Change implements Comparable<Change>{
    
    public String fromPeer = "";
    
    Long timeStamp;
    public Change(){
        timeStamp = System.currentTimeMillis();
    }

    @Override
    public int compareTo(Change o) {
       //return Long.compare(timeStamp, ((Change)o).timeStamp);
        return timeStamp.compareTo(((Change)o).timeStamp);
    }
    
    public Change obtainRepr(){
    	return this;
    }
    
    static final Change fakeChange = new Change();
    public static Change fakeChangeForSearch(long timeStamp){
        fakeChange.timeStamp = timeStamp;
        return fakeChange;
    }
}