Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/utilities/LivenessPathElement.java @ 607:d8c7fa77a6dc
Merge
author | kvn |
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date | Tue, 03 Mar 2009 10:34:22 -0800 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ package sun.jvm.hotspot.utilities; import sun.jvm.hotspot.oops.*; /** Describes an element in a {@link sun.jvm.hotspot.utilities.LivenessPath}. It indicates that the field in the given object leads to the next element in the path. Root elements do not have an object; the terminal element in the path does not have a field identifier. */ public class LivenessPathElement { LivenessPathElement(Oop obj, FieldIdentifier id) { this.obj = obj; this.id = id; } public boolean isRoot() { return (obj == null); } public boolean isTerminal() { return (id == null); } public Oop getObj() { return obj; } public FieldIdentifier getField() { return id; } //--------------------------------------------------------------------------- // Internals only below this point // private Oop obj; private FieldIdentifier id; }