001/* 002 * Copyright 2002-2015 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.springframework.lang.Nullable; 020 021/** 022 * Minimal interface for exposing the target class behind a proxy. 023 * 024 * <p>Implemented by AOP proxy objects and proxy factories 025 * (via {@link org.springframework.aop.framework.Advised}) 026 * as well as by {@link TargetSource TargetSources}. 027 * 028 * @author Juergen Hoeller 029 * @since 2.0.3 030 * @see org.springframework.aop.support.AopUtils#getTargetClass(Object) 031 */ 032public interface TargetClassAware { 033 034 /** 035 * Return the target class behind the implementing object 036 * (typically a proxy configuration or an actual proxy). 037 * @return the target Class, or {@code null} if not known 038 */ 039 @Nullable 040 Class<?> getTargetClass(); 041 042}