/*
* Copyright (C) 2009 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.common.annotations;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* The presence of this annotation on an API indicates that the method may <em>not</em> be used with
* the <a href="http://www.gwtproject.org/">Google Web Toolkit</a> (GWT).
*
* <p>This annotation behaves identically to <a href=
* "http://www.gwtproject.org/javadoc/latest/com/google/gwt/core/shared/GwtIncompatible.html">the
* {@code @GwtIncompatible} annotation in GWT itself</a>.
*
* @author Charles Fry
*/
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.TYPE, ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.FIELD})
@Documented
@GwtCompatible
public @interface GwtIncompatible {
/**
* Describes why the annotated element is incompatible with GWT. Since this is generally due to a
* dependence on a type/method which GWT doesn't support, it is sufficient to simply reference the
* unsupported type/method. E.g. "Class.isInstance".
*
* <p>As of Guava 20.0, this value is optional. We encourage authors who wish to describe why an
* API is {@code @GwtIncompatible} to instead leave an implementation comment.
*/
String value() default "";
}