001/* 002 * Copyright 2002-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.aop; 018 019/** 020 * Superinterface for advisors that perform one or more AOP <b>introductions</b>. 021 * 022 * <p>This interface cannot be implemented directly; subinterfaces must 023 * provide the advice type implementing the introduction. 024 * 025 * <p>Introduction is the implementation of additional interfaces 026 * (not implemented by a target) via AOP advice. 027 * 028 * @author Rod Johnson 029 * @since 04.04.2003 030 * @see IntroductionInterceptor 031 */ 032public interface IntroductionAdvisor extends Advisor, IntroductionInfo { 033 034 /** 035 * Return the filter determining which target classes this introduction 036 * should apply to. 037 * <p>This represents the class part of a pointcut. Note that method 038 * matching doesn't make sense to introductions. 039 * @return the class filter 040 */ 041 ClassFilter getClassFilter(); 042 043 /** 044 * Can the advised interfaces be implemented by the introduction advice? 045 * Invoked before adding an IntroductionAdvisor. 046 * @throws IllegalArgumentException if the advised interfaces can't be 047 * implemented by the introduction advice 048 */ 049 void validateInterfaces() throws IllegalArgumentException; 050 051}