1 /* 2 * Copyright (C) 2009 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 17 package com.google.common.annotations; 18 19 import java.lang.annotation.Documented; 20 import java.lang.annotation.ElementType; 21 import java.lang.annotation.Retention; 22 import java.lang.annotation.RetentionPolicy; 23 import java.lang.annotation.Target; 24 25 /** 26 * The presence of this annotation on a method indicates that the method may 27 * <em>not</em> be used with the 28 * <a href="http://code.google.com/webtoolkit/">Google Web Toolkit</a> (GWT), 29 * even though its type is annotated as {@link GwtCompatible} and accessible in 30 * GWT. They can cause GWT compilation errors or simply unexpected exceptions 31 * when used in GWT. 32 * 33 * <p>Note that this annotation should only be applied to methods, fields, or 34 * inner classes of types which are annotated as {@link GwtCompatible}. 35 * 36 * @author Charles Fry 37 */ 38 @Retention(RetentionPolicy.CLASS) 39 @Target({ 40 ElementType.TYPE, ElementType.METHOD, 41 ElementType.CONSTRUCTOR, ElementType.FIELD }) 42 @Documented 43 @GwtCompatible 44 public @interface GwtIncompatible { 45 /** 46 * Describes why the annotated element is incompatible with GWT. Since this is 47 * generally due to a dependence on a type/method which GWT doesn't support, 48 * it is sufficient to simply reference the unsupported type/method. E.g. 49 * "Class.isInstance". 50 */ 51 String value(); 52 } 53
