UseSynchronizerToken.java

/*
 * Copyright 2011 cruxframework.org.
 * 
 * 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 org.cruxframework.crux.core.shared.rpc.st;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Applies the Synchronizer Token pattern on any call to the annotated method.
 * This pattern helps to avoid the "Duplicated Request" problem and to prevent 
 * CSRF attacks.
 * 
 * @author Thiago da Rosa de Bustamante
 *
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface UseSynchronizerToken 
{
	boolean notifyCallsWhenProcessing() default true;
	boolean blocksUserInteraction() default true;
}