/* This file is part of the Joshua Machine Translation System.
*
* Joshua 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 2.1
* of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
package joshua.lattice;
import java.io.Serializable;
import java.util.Comparator;
/**
* Compares nodes based only on the natural order of their integer
* identifiers.
*
* @author Lane Schwartz
*/
public class NodeIdentifierComparator implements Comparator<Node<?>>, Serializable {
private static final long serialVersionUID = 1L;
/* See Javadoc for java.util.Comparator#compare */
public int compare(Node<?> o1, Node<?> o2) {
return o1.id.compareTo(o2.id);
}
}