| /* |
| * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| package sun.jvm.hotspot.ui.tree; |
| |
| import java.util.*; |
| import java.io.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| /** Who directly points to this node. */ |
| |
| public class RevPtrsTreeNodeAdapter extends FieldTreeNodeAdapter { |
| private static FieldIdentifier fid = new NamedFieldIdentifier("_revPtrs"); |
| |
| private List children; |
| |
| public RevPtrsTreeNodeAdapter(Oop oop) { |
| this(oop, false); |
| } |
| |
| public RevPtrsTreeNodeAdapter(Oop oop, boolean treeTableMode) { |
| super(fid, treeTableMode); |
| children = VM.getVM().getRevPtrs().get(oop); |
| } |
| |
| public int getChildCount() { |
| return children != null ? children.size() : 0; |
| } |
| |
| public SimpleTreeNode getChild(int index) { |
| LivenessPathElement lpe = (LivenessPathElement)children.get(index); |
| IndexableFieldIdentifier ifid = new IndexableFieldIdentifier(index); |
| Oop oop = lpe.getObj(); |
| if (oop != null) { |
| return new OopTreeNodeAdapter(oop, ifid, getTreeTableMode()); |
| } else { |
| NamedFieldIdentifier nfi = (NamedFieldIdentifier)lpe.getField(); |
| return new RootTreeNodeAdapter(nfi.getName(), ifid, getTreeTableMode()); |
| } |
| } |
| |
| public boolean isLeaf() { |
| return false; |
| } |
| |
| public int getIndexOfChild(SimpleTreeNode child) { |
| FieldIdentifier id = ((FieldTreeNodeAdapter) child).getID(); |
| IndexableFieldIdentifier ifid = (IndexableFieldIdentifier)id; |
| return ifid.getIndex(); |
| } |
| |
| public String getName() { return "<<Reverse pointers>>"; } |
| public String getValue() { return ""; } |
| } |