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1 /*
2  * Copyright (c) 1998, 2013, Oracle and/or its affiliates. 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.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 package com.sun.jdi.request;
27 
28 import com.sun.jdi.*;
29 
30 /**
31  * Request for notification when the contents of a field are accessed
32  * in the target VM.
33  * This event will be triggered when the specified field is accessed
34  * by Java<SUP><FONT SIZE="-2">TM</FONT></SUP> programming
35  * language code or by a
36  * Java Native Interface (JNI) get function (<code>Get&lt;Type&gt;Field,
37  * GetStatic&lt;Type&gt;Field</code>).
38  * Access by JDI does not trigger this event.
39  * When an enabled AccessWatchpointRequest is satisfied, an
40  * {@link com.sun.jdi.event.EventSet event set} containing an
41  * {@link com.sun.jdi.event.AccessWatchpointEvent AccessWatchpointEvent} will be placed
42  * on the {@link com.sun.jdi.event.EventQueue EventQueue}.
43  * The collection of existing ExceptionRequests is
44  * managed by the {@link EventRequestManager}
45  * The collection of existing
46  * watchpoints is
47  * managed by the {@link EventRequestManager}.
48  * <p>
49  * Note that the modification
50  * of a Field is not considered an access.
51  *
52  * @see ModificationWatchpointRequest
53  * @see com.sun.jdi.event.EventQueue
54  * @see EventRequestManager
55  *
56  * @author Robert Field
57  * @since  1.3
58  */
59 @jdk.Exported
60 public interface AccessWatchpointRequest extends WatchpointRequest {
61 }
62