Beta.java revision 0888a09821a98ac0680fad765217302858e70fa4
1/* 2 * Copyright (C) 2010 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.google.common.annotations; 18 19import java.lang.annotation.Documented; 20import java.lang.annotation.ElementType; 21import java.lang.annotation.Retention; 22import java.lang.annotation.RetentionPolicy; 23import java.lang.annotation.Target; 24 25/** 26 * Signifies that a public API (public class, method or field) is subject to 27 * incompatible changes, or even removal, in a future release. An API bearing 28 * this annotation is exempt from any compatibility guarantees made by its 29 * containing library. Note that the presence of this annotation implies nothing 30 * about the quality or performance of the API in question, only the fact that 31 * it is not "API-frozen." 32 * 33 * <p>It is generally safe for <i>applications</i> to depend on beta APIs, at 34 * the cost of some extra work during upgrades. However it is generally 35 * inadvisable for <i>libraries</i> (which get included on users' CLASSPATHs, 36 * outside the library developers' control) to do so. 37 * 38 * 39 * @author Kevin Bourrillion 40 */ 41@Retention(RetentionPolicy.CLASS) 42@Target({ 43 ElementType.ANNOTATION_TYPE, 44 ElementType.CONSTRUCTOR, 45 ElementType.FIELD, 46 ElementType.METHOD, 47 ElementType.TYPE}) 48@Documented 49@GwtCompatible 50public @interface Beta {} 51