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}