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comparison agent/src/share/classes/sun/jvm/hotspot/ui/tree/RevPtrsTreeNodeAdapter.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 2002 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.ui.tree;
26
27 import java.util.*;
28 import java.io.*;
29 import sun.jvm.hotspot.oops.*;
30 import sun.jvm.hotspot.debugger.*;
31 import sun.jvm.hotspot.runtime.*;
32 import sun.jvm.hotspot.utilities.*;
33
34 /** Who directly points to this node. */
35
36 public class RevPtrsTreeNodeAdapter extends FieldTreeNodeAdapter {
37 private static FieldIdentifier fid = new NamedFieldIdentifier("_revPtrs");
38
39 private List children;
40
41 public RevPtrsTreeNodeAdapter(Oop oop) {
42 this(oop, false);
43 }
44
45 public RevPtrsTreeNodeAdapter(Oop oop, boolean treeTableMode) {
46 super(fid, treeTableMode);
47 children = VM.getVM().getRevPtrs().get(oop);
48 }
49
50 public int getChildCount() {
51 return children != null ? children.size() : 0;
52 }
53
54 public SimpleTreeNode getChild(int index) {
55 LivenessPathElement lpe = (LivenessPathElement)children.get(index);
56 IndexableFieldIdentifier ifid = new IndexableFieldIdentifier(index);
57 Oop oop = lpe.getObj();
58 if (oop != null) {
59 return new OopTreeNodeAdapter(oop, ifid, getTreeTableMode());
60 } else {
61 NamedFieldIdentifier nfi = (NamedFieldIdentifier)lpe.getField();
62 return new RootTreeNodeAdapter(nfi.getName(), ifid, getTreeTableMode());
63 }
64 }
65
66 public boolean isLeaf() {
67 return false;
68 }
69
70 public int getIndexOfChild(SimpleTreeNode child) {
71 FieldIdentifier id = ((FieldTreeNodeAdapter) child).getID();
72 IndexableFieldIdentifier ifid = (IndexableFieldIdentifier)id;
73 return ifid.getIndex();
74 }
75
76 public String getName() { return "<<Reverse pointers>>"; }
77 public String getValue() { return ""; }
78 }