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/*
 * Copyright 2014 the original author or 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 org.springframework.yarn.config.annotation;

import java.lang.annotation.Annotation;
import java.lang.reflect.Method;

/**
 * Strategy interface for post-processing annotated methods.
 *
 * @author Mark Fisher
 * @author Janne Valkealahti
 *
 * @param  the type of an annotation
 */
public interface MethodAnnotationPostProcessor {

	/**
	 * Post process a bean. As a result of a given bean, its name, method
	 * and annotation in a method, this method can return a new bean or
	 * null. Caller of this method is then responsible to
	 * handle newly created object.
	 *
	 * @param bean the bean
	 * @param beanName the bean name
	 * @param method the method
	 * @param annotation the annotation
	 * @return the object
	 */
	Object postProcess(Object bean, String beanName, Method method, T annotation);

}