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1   /*
2    * Copyright 2012 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package org.jboss.netty.channel.group;
17  
18  import java.util.EventListener;
19  
20  /**
21   * Listens to the result of a {@link ChannelGroupFuture}.  The result of the
22   * asynchronous {@link ChannelGroup} I/O operations is notified once this
23   * listener is added by calling {@link ChannelGroupFuture#addListener(ChannelGroupFutureListener)}
24   * and all I/O operations are complete.
25   */
26  public interface ChannelGroupFutureListener extends EventListener {
27  
28      /**
29       * Invoked when all I/O operations associated with the
30       * {@link ChannelGroupFuture} have been completed.
31       *
32       * @param future  The source {@link ChannelGroupFuture} which called this
33       *                callback.
34       */
35      void operationComplete(ChannelGroupFuture future) throws Exception;
36  }