spring MessagingAdviceBean 源码
spring MessagingAdviceBean 代码
文件路径：/spring-messaging/src/main/java/org/springframework/messaging/handler/MessagingAdviceBean.java
/*
* Copyright 2002-2017 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
*
* https://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.messaging.handler;
import org.springframework.core.Ordered;
import org.springframework.lang.Nullable;
/**
* Represents a Spring-managed bean with cross-cutting functionality to be
* applied to one or more Spring beans with annotation-based message
* handling methods.
*
* <p>Component stereotypes such as
* {@link org.springframework.stereotype.Controller @Controller} with annotation
* handler methods often need cross-cutting functionality across all or a subset
* of such annotated components. A primary example of this is the need for "global"
* annotated exception handler methods but the concept applies more generally.
*
* @author Rossen Stoyanchev
* @since 4.2
*/
public interface MessagingAdviceBean extends Ordered {
/**
* Return the type of the contained advice bean.
* <p>If the bean type is a CGLIB-generated class, the original user-defined
* class is returned.
*/
@Nullable
Class<?> getBeanType();
/**
* Return the advice bean instance, if necessary resolving a bean specified
* by name through the BeanFactory.
*/
Object resolveBean();
/**
* Whether this {@link MessagingAdviceBean} applies to the given bean type.
* @param beanType the type of the bean to check
*/
boolean isApplicableToBeanType(Class<?> beanType);
}
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