1 /* 2 * Copyright 2009 Red Hat, Inc. 3 * 4 * Red Hat licenses this file to you under the Apache License, version 2.0 5 * (the "License"); you may not use this file except in compliance with the 6 * 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; 17 18 /** 19 * A {@link ChannelEvent} which represents the notification of the state of 20 * a child {@link Channel}. This event is for going upstream only. Please 21 * refer to the {@link ChannelEvent} documentation to find out what an upstream 22 * event and a downstream event are and what fundamental differences they have. 23 * 24 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a> 25 * @author <a href="http://gleamynode.net/">Trustin Lee</a> 26 * 27 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $ 28 */ 29 public interface ChildChannelStateEvent extends ChannelEvent { 30 31 /** 32 * Returns the <strong>parent</strong> {@link Channel} which is associated 33 * with this event. Please note that you should use {@link #getChildChannel()} 34 * to get the {@link Channel} created or accepted by the parent {@link Channel}. 35 */ 36 Channel getChannel(); 37 38 /** 39 * Returns the child {@link Channel} whose state has been changed. 40 */ 41 Channel getChildChannel(); 42 }