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.framework;
018
019/**
020 * Delegate interface for a configured AOP proxy, allowing for the creation
021 * of actual proxy objects.
022 *
023 * <p>Out-of-the-box implementations are available for JDK dynamic proxies
024 * and for CGLIB proxies, as applied by {@link DefaultAopProxyFactory}.
025 *
026 * @author Rod Johnson
027 * @author Juergen Hoeller
028 * @see DefaultAopProxyFactory
029 */
030public interface AopProxy {
031
032        /**
033         * Create a new proxy object.
034         * <p>Uses the AopProxy's default class loader (if necessary for proxy creation):
035         * usually, the thread context class loader.
036         * @return the new proxy object (never {@code null})
037         * @see Thread#getContextClassLoader()
038         */
039        Object getProxy();
040
041        /**
042         * Create a new proxy object.
043         * <p>Uses the given class loader (if necessary for proxy creation).
044         * {@code null} will simply be passed down and thus lead to the low-level
045         * proxy facility's default, which is usually different from the default chosen
046         * by the AopProxy implementation's {@link #getProxy()} method.
047         * @param classLoader the class loader to create the proxy with
048         * (or {@code null} for the low-level proxy facility's default)
049         * @return the new proxy object (never {@code null})
050         */
051        Object getProxy(ClassLoader classLoader);
052
053}