001/* 002 * ==================================================================== 003 * Licensed to the Apache Software Foundation (ASF) under one 004 * or more contributor license agreements. See the NOTICE file 005 * distributed with this work for additional information 006 * regarding copyright ownership. The ASF licenses this file 007 * to you under the Apache License, Version 2.0 (the 008 * "License"); you may not use this file except in compliance 009 * with the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, 014 * software distributed under the License is distributed on an 015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 016 * KIND, either express or implied. See the License for the 017 * specific language governing permissions and limitations 018 * under the License. 019 * ==================================================================== 020 * 021 * This software consists of voluntary contributions made by many 022 * individuals on behalf of the Apache Software Foundation. For more 023 * information on the Apache Software Foundation, please see 024 * <http://www.apache.org/>. 025 * 026 */ 027 028package org.apache.http.nio.reactor; 029 030/** 031 * SessionRequestCallback interface can be used to get notifications of 032 * completion of session requests asynchronously without having to wait 033 * for it, blocking the current thread of execution. 034 * 035 * @since 4.0 036 */ 037public interface SessionRequestCallback { 038 039 /** 040 * Triggered on successful completion of a {@link SessionRequest}. 041 * The {@link SessionRequest#getSession()} method can now be used to obtain 042 * the new I/O session. 043 * 044 * @param request session request. 045 */ 046 void completed(SessionRequest request); 047 048 /** 049 * Triggered on unsuccessful completion a {@link SessionRequest}. 050 * The {@link SessionRequest#getException()} method can now be used to 051 * obtain the cause of the error. 052 * 053 * @param request session request. 054 */ 055 void failed(SessionRequest request); 056 057 /** 058 * Triggered if a {@link SessionRequest} times out. 059 * 060 * @param request session request. 061 */ 062 void timeout(SessionRequest request); 063 064 /** 065 * Triggered on cancellation of a {@link SessionRequest}. 066 * 067 * @param request session request. 068 */ 069 void cancelled(SessionRequest request); 070 071}