01: /*
02: * Copyright 1998-2000 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: package com.sun.jdi.event;
27:
28: import com.sun.jdi.*;
29:
30: /**
31: * Notification of a field triggered event encountered by a thread in the
32: * target VM.
33: *
34: * @see EventQueue
35: * @see VirtualMachine
36: *
37: * @author Robert Field
38: * @since 1.3
39: */
40: public interface WatchpointEvent extends LocatableEvent {
41:
42: /**
43: * Returns the field that is about to be accessed/modified.
44: *
45: * @return a {@link Field} which mirrors the field
46: * in the target VM.
47: * @throws ObjectCollectedException may be thrown if class
48: * has been garbage collected.
49: */
50: Field field();
51:
52: /**
53: * Returns the object whose field is about to be accessed/modified.
54: * Return null is the access is to a static field.
55: *
56: * @return a {@link ObjectReference} which mirrors the event's
57: * object in the target VM.
58: */
59: ObjectReference object();
60:
61: /**
62: * Current value of the field.
63: * @throws ObjectCollectedException if object or class have been
64: * garbage collected.
65: */
66: Value valueCurrent();
67: }
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