1 /*
2 * ====================================================================
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ====================================================================
19 *
20 * This software consists of voluntary contributions made by many
21 * individuals on behalf of the Apache Software Foundation. For more
22 * information on the Apache Software Foundation, please see
23 * <http://www.apache.org/>.
24 *
25 */
26 package org.apache.http.client;
27
28 import org.apache.http.conn.routing.HttpRoute;
29
30 /**
31 * Represents a controller that dynamically adjusts the size
32 * of an available connection pool based on feedback from
33 * using the connections.
34 *
35 * @since 4.2
36 *
37 */
38 public interface BackoffManager {
39
40 /**
41 * Called when we have decided that the result of
42 * using a connection should be interpreted as a
43 * backoff signal.
44 */
45 public void backOff(HttpRoute route);
46
47 /**
48 * Called when we have determined that the result of
49 * using a connection has succeeded and that we may
50 * probe for more connections.
51 */
52 public void probe(HttpRoute route);
53 }