/* * Copyright 2010 Google Inc. * * 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.gwt.user.client.rpc; import java.io.Serializable; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; /** * An interface for RPC token implementation objects included with each RPC * call. RPC tokens can be used to implement XSRF protection for RPC calls. */ public interface RpcToken extends Serializable { /** * {@link RemoteService} interfaces specifying {@link RpcToken} implementation * using this annotation will only have serializers for the specific class * generated, as opposed to generating serializers for all {@link RpcToken} * implementations. */ @Target(ElementType.TYPE) @Retention(RetentionPolicy.RUNTIME) public @interface RpcTokenImplementation { String value(); } }