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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  }