1   /*
2    *  Copyright (c) 1998-2001, The University of Sheffield.
3    *
4    *  This file is part of GATE (see http://gate.ac.uk/), and is free
5    *  software, licenced under the GNU Library General Public License,
6    *  Version 2, June 1991 (in the distribution as file licence.html,
7    *  and also available at http://gate.ac.uk/gate/licence.html).
8    *
9    *  Valentin Tablan 02/10/2001
10   *
11   *  $Id: OffsetComparator.java,v 1.2 2001/10/03 10:09:12 valyt Exp $
12   *
13   */
14  package gate.util;
15  
16  import java.util.Comparator;
17  import gate.*;
18  
19  /**
20   * Compares annotations by start offset
21   */
22  public class OffsetComparator implements Comparator {
23  
24    public int compare(Object o1, Object o2){
25      Annotation a1 = (Annotation)o1;
26      Annotation a2 = (Annotation)o2;
27      return a1.getStartNode().getOffset().compareTo(
28              a2.getStartNode().getOffset());
29    }
30  }