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.EventQueue;
  29 import com.sun.jdi.event.EventSet;
  30 import com.sun.jdi.event.ModificationWatchpointEvent;
  31 
  32 /**
  33  * Request for notification when a field is set.
  34  * This event will be triggered when a value is assigned to the specified
  35  * field with a Java™ programming
  36  * language statement (assignment, increment, etc) or by a
  37  * Java Native Interface (JNI) set function (<code>Set&lt;Type&gt;Field,
  38  * SetStatic&lt;Type&gt;Field</code>).
  39  * Setting a field to a value which is the same as the previous value
  40  * still triggers this event.
  41  * Modification by JDI does not trigger this event.
  42  * When an enabled ModificationWatchpointRequest is satisfied, an
  43  * {@link EventSet event set} containing a
  44  * {@link ModificationWatchpointEvent ModificationWatchpointEvent}
  45  * will be placed on the {@link EventQueue EventQueue}.
  46  * The collection of existing watchpoints is
  47  * managed by the {@link EventRequestManager}.
  48  *
  49  * @see ModificationWatchpointEvent
  50  * @see AccessWatchpointRequest
  51  * @see EventQueue
  52  * @see EventRequestManager
  53  *
  54  * @author Robert Field
  55  * @since  1.3
  56  */
  57 public interface ModificationWatchpointRequest extends WatchpointRequest {
  58 }