01: /*
02: * Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: /*
27: * The contents of this file are subject to the Sun Public License
28: * Version 1.0 (the "License"); you may not use this file except in
29: * compliance with the License. A copy of the License is available at
30: * http://www.sun.com/, and in the file LICENSE.html in the
31: * doc directory.
32: *
33: * The Original Code is HAT. The Initial Developer of the
34: * Original Code is Bill Foote, with contributions from others
35: * at JavaSoft/Sun. Portions created by Bill Foote and others
36: * at Javasoft/Sun are Copyright (C) 1997-2004. All Rights Reserved.
37: *
38: * In addition to the formal license, I ask that you don't
39: * change the history or donations files without permission.
40: *
41: */
42:
43: package com.sun.tools.hat.internal.model;
44:
45: /**
46: * A visitor for a JavaThing. @see JavaObject#visitReferencedObjects()
47: *
48: * @version 1.6, 10/08/98 [jhat @(#)JavaHeapObjectVisitor.java 1.8 07/05/05]
49: * @author Bill Foote
50: */
51:
52: public interface JavaHeapObjectVisitor {
53: public void visit(JavaHeapObject other);
54:
55: /**
56: * Should the given field be excluded from the set of things visited?
57: * @return true if it should.
58: */
59: public boolean exclude(JavaClass clazz, JavaField f);
60:
61: /**
62: * @return true iff exclude might ever return true
63: */
64: public boolean mightExclude();
65: }
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