spring DynamicIntroductionAdvice 源码
spring DynamicIntroductionAdvice 代码
文件路径：/spring-aop/src/main/java/org/springframework/aop/DynamicIntroductionAdvice.java
/*
* Copyright 2002-2021 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.aop;
import org.aopalliance.aop.Advice;
/**
* Subinterface of AOP Alliance Advice that allows additional interfaces
* to be implemented by an Advice, and available via a proxy using that
* interceptor. This is a fundamental AOP concept called <b>introduction</b>.
*
* <p>Introductions are often <b>mixins</b>, enabling the building of composite
* objects that can achieve many of the goals of multiple inheritance in Java.
*
* <p>Compared to {@link IntroductionInfo}, this interface allows an advice to
* implement a range of interfaces that is not necessarily known in advance.
* Thus an {@link IntroductionAdvisor} can be used to specify which interfaces
* will be exposed in an advised object.
*
* @author Rod Johnson
* @since 1.1.1
* @see IntroductionInfo
* @see IntroductionAdvisor
*/
public interface DynamicIntroductionAdvice extends Advice {
/**
* Does this introduction advice implement the given interface?
* @param intf the interface to check
* @return whether the advice implements the specified interface
*/
boolean implementsInterface(Class<?> intf);
}
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