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 * Interface supplying the information necessary to describe an introduction. 021 * 022 * <p>{@link IntroductionAdvisor IntroductionAdvisors} must implement this 023 * interface. If an {@link org.aopalliance.aop.Advice} implements this, 024 * it may be used as an introduction without an {@link IntroductionAdvisor}. 025 * In this case, the advice is self-describing, providing not only the 026 * necessary behavior, but describing the interfaces it introduces. 027 * 028 * @author Rod Johnson 029 * @since 1.1.1 030 */ 031public interface IntroductionInfo { 032 033 /** 034 * Return the additional interfaces introduced by this Advisor or Advice. 035 * @return the introduced interfaces 036 */ 037 Class<?>[] getInterfaces(); 038 039}