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 an exception 20 * raised by a {@link ChannelHandler} or an I/O thread. This event is for 21 * going upstream only. Please refer to the {@link ChannelEvent} documentation 22 * to find out what an upstream event and a downstream event are and what 23 * fundamental differences they have. 24 * 25 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a> 26 * @author <a href="http://gleamynode.net/">Trustin Lee</a> 27 * 28 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $ 29 */ 30 public interface ExceptionEvent extends ChannelEvent { 31 32 /** 33 * Returns the raised exception. 34 */ 35 Throwable getCause(); 36 }