/*
* Copyright 2002-2007 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.aop;
/**
* Superinterface for advisors that perform one or more AOP <b>introductions</b>.
*
* <p>This interface cannot be implemented directly; subinterfaces must
* provide the advice type implementing the introduction.
*
* <p>Introduction is the implementation of additional interfaces
* (not implemented by a target) via AOP advice.
*
* @author Rod Johnson
* @since 04.04.2003
* @see IntroductionInterceptor
*/
public interface IntroductionAdvisor extends Advisor, IntroductionInfo {
/**
* Return the filter determining which target classes this introduction
* should apply to.
* <p>This represents the class part of a pointcut. Note that method
* matching doesn't make sense to introductions.
* @return the class filter
*/
ClassFilter getClassFilter();
/**
* Can the advised interfaces be implemented by the introduction advice?
* Invoked before adding an IntroductionAdvisor.
* @throws IllegalArgumentException if the advised interfaces can't be
* implemented by the introduction advice
*/
void validateInterfaces() throws IllegalArgumentException;
}
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