001    /*
002     * Copyright (C) 2010 The Guava Authors
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package com.google.common.annotations;
018    
019    import java.lang.annotation.Documented;
020    import java.lang.annotation.ElementType;
021    import java.lang.annotation.Retention;
022    import java.lang.annotation.RetentionPolicy;
023    import java.lang.annotation.Target;
024    
025    /**
026     * Signifies that a public API (public class, method or field) is subject to
027     * incompatible changes, or even removal, in a future release. An API bearing
028     * this annotation is exempt from any compatibility guarantees made by its
029     * containing library.
030     *
031     * @author Kevin Bourrillion
032     */
033    @Retention(RetentionPolicy.CLASS)
034    @Target({
035        ElementType.ANNOTATION_TYPE,
036        ElementType.CONSTRUCTOR,
037        ElementType.FIELD,
038        ElementType.METHOD,
039        ElementType.TYPE})
040    @Documented
041    @GwtCompatible
042    @Beta
043    public @interface Beta {}