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.annotation; 028 029/** 030 Defines types of threading behavior enforced at runtime. 031 */ 032public enum ThreadingBehavior { 033 034 /** 035 * Instances of classes with the given contract are expected to be fully immutable 036 * and thread-safe. 037 */ 038 IMMUTABLE, 039 040 /** 041 * Instances of classes with the given contract are expected to be immutable if their 042 * dependencies injected at construction time are immutable and are expected to be thread-safe 043 * if their dependencies are thread-safe. 044 */ 045 IMMUTABLE_CONDITIONAL, 046 047 /** 048 * Instances of classes with the given contract are expected to be fully thread-safe. 049 */ 050 SAFE, 051 052 /** 053 * Instances of classes with the given contract are expected to be thread-safe if their 054 * dependencies injected at construction time are thread-safe. 055 */ 056 SAFE_CONDITIONAL, 057 058 /** 059 * Instances of classes with the given contract are expected to be non thread-safe. 060 */ 061 UNSAFE 062 063}