1/*
2 * Copyright (c) 2003, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25package sun.jvm.hotspot.debugger.cdbg;
26
27import java.util.*;
28import sun.jvm.hotspot.debugger.*;
29
30// a comparator used to sort LoadObjects by base address
31
32public class LoadObjectComparator implements Comparator {
33   public int compare(Object o1, Object o2) {
34      LoadObject lo1 = (LoadObject) o1;
35      LoadObject lo2 = (LoadObject) o2;
36      Address base1 = lo1.getBase();
37      Address base2 = lo2.getBase();
38      long diff = base1.minus(base2);
39      return (diff == 0)? 0 : ((diff < 0)? -1 : +1);
40   }
41
42   public boolean equals(Object o) {
43      if (o == null || !(o instanceof LoadObjectComparator)) {
44         return false;
45      }
46      return true;
47   }
48}
49