001/** 002 * Copyright (C) 2012 FuseSource, Inc. 003 * http://fusesource.com 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018package org.fusesource.hawtdispatch.transport; 019 020import java.io.IOException; 021 022 023/** 024 * An asynchronous listener of commands 025 * 026 */ 027public interface TransportListener { 028 029 /** 030 * called to process a command 031 * @param command 032 */ 033 void onTransportCommand(Object command); 034 035 /** 036 * transport can now accept more commands for transmission. 037 */ 038 void onRefill(); 039 040 /** 041 * An unrecoverable exception has occured on the transport 042 * @param error 043 */ 044 void onTransportFailure(IOException error); 045 046 /** 047 * The transport has been connected. 048 */ 049 public void onTransportConnected(); 050 051 /** 052 * The transport has been disconnected. 053 */ 054 public void onTransportDisconnected(); 055 056}