001/* 002 * Copyright 2002-2007 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 019import org.aopalliance.intercept.MethodInterceptor; 020 021/** 022 * Subinterface of AOP Alliance MethodInterceptor that allows additional interfaces 023 * to be implemented by the interceptor, and available via a proxy using that 024 * interceptor. This is a fundamental AOP concept called <b>introduction</b>. 025 * 026 * <p>Introductions are often <b>mixins</b>, enabling the building of composite 027 * objects that can achieve many of the goals of multiple inheritance in Java. 028 * 029 * @author Rod Johnson 030 * @see DynamicIntroductionAdvice 031 */ 032public interface IntroductionInterceptor extends MethodInterceptor, DynamicIntroductionAdvice { 033 034}