1 /*
   2  * Copyright (c) 2016, 2018, 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 java.awt.desktop;
  27 
  28 /**
  29  * Implementors receive notification as the system is entering sleep, and after
  30  * the system wakes.
  31  * <p>
  32  * This notification is useful for disconnecting from network services prior to
  33  * sleep, or re-establishing a connection if the network configuration has
  34  * changed during sleep.
  35  *
  36  * @since 9
  37  */
  38 public interface SystemSleepListener extends SystemEventListener {
  39 
  40     /**
  41      * Called when the system is about to sleep. Note: This message may not be
  42      * delivered prior to the actual system sleep, and may be processed after
  43      * the corresponding wake has occurred.
  44      *
  45      * @param  e the system sleep event
  46      */
  47     public void systemAboutToSleep(SystemSleepEvent e);
  48 
  49     /**
  50      * Called after the system has awoken from sleeping.
  51      *
  52      * @param  e the system sleep event
  53      */
  54     public void systemAwoke(SystemSleepEvent e);
  55 }