1 /*
   2  * Copyright (c) 1998, 2017, 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.event.AccessWatchpointEvent;
  29 import com.sun.jdi.event.EventQueue;
  30 import com.sun.jdi.event.EventSet;
  31 
  32 /**
  33  * Request for notification when the contents of a field are accessed
  34  * in the target VM.
  35  * This event will be triggered when the specified field is accessed
  36  * by Java programming language code or by a
  37  * Java Native Interface (JNI) get function (<code>Get&lt;Type&gt;Field,
  38  * GetStatic&lt;Type&gt;Field</code>).
  39  * Access by JDI does not trigger this event.
  40  * When an enabled AccessWatchpointRequest is satisfied, an
  41  * {@link EventSet event set} containing an
  42  * {@link AccessWatchpointEvent AccessWatchpointEvent} will be placed
  43  * on the {@link EventQueue EventQueue}.
  44  * The collection of existing ExceptionRequests is
  45  * managed by the {@link EventRequestManager}
  46  * The collection of existing 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 EventQueue
  54  * @see EventRequestManager
  55  *
  56  * @author Robert Field
  57  * @since  1.3
  58  */
  59 public interface AccessWatchpointRequest extends WatchpointRequest {
  60 }