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 */ 027package org.apache.http.client; 028 029import org.apache.http.conn.routing.HttpRoute; 030 031/** 032 * Represents a controller that dynamically adjusts the size 033 * of an available connection pool based on feedback from 034 * using the connections. 035 * 036 * @since 4.2 037 * 038 */ 039public interface BackoffManager { 040 041 /** 042 * Called when we have decided that the result of 043 * using a connection should be interpreted as a 044 * backoff signal. 045 */ 046 public void backOff(HttpRoute route); 047 048 /** 049 * Called when we have determined that the result of 050 * using a connection has succeeded and that we may 051 * probe for more connections. 052 */ 053 public void probe(HttpRoute route); 054}