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1   /*
2    * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.  Oracle designates this
8    * particular file as subject to the "Classpath" exception as provided
9    * by Oracle in the LICENSE file that accompanied this code.
10   *
11   * This code is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14   * version 2 for more details (a copy is included in the LICENSE file that
15   * accompanied this code).
16   *
17   * You should have received a copy of the GNU General Public License version
18   * 2 along with this work; if not, write to the Free Software Foundation,
19   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20   *
21   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22   * or visit www.oracle.com if you need additional information or have any
23   * questions.
24   */
25  
26  
27  /*
28   * The Original Code is HAT. The Initial Developer of the
29   * Original Code is Bill Foote, with contributions from others
30   * at JavaSoft/Sun.
31   */
32  
33  package com.sun.tools.hat.internal.util;
34  
35  /**
36   * Base class for comparison of two objects.
37   * @see VectorSorter
38   *
39   * @author      Bill Foote
40   */
41  
42  abstract public class Comparer {
43  
44      /**
45       * @return a number <, == or > 0 depending on lhs compared to rhs
46       * @see java.lang.String.compareTo
47      **/
48      abstract public int compare(Object lhs, Object rhs);
49  }