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comparison agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/LoadObjectComparator.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.debugger.cdbg;
26
27 import java.util.*;
28 import sun.jvm.hotspot.debugger.*;
29
30 // a comparator used to sort LoadObjects by base address
31
32 public 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 }