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/*
 * Copyright 2002-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.aop;

import org.aopalliance.intercept.MethodInvocation;

/**
 * Extension of the AOP Alliance {@link org.aopalliance.intercept.MethodInvocation}
 * interface, allowing access to the proxy that the method invocation was made through.
 *
 * 

Useful to be able to substitute return values with the proxy, * if necessary, for example if the invocation target returned itself. * * @author Juergen Hoeller * @author Adrian Colyer * @since 1.1.3 * @see org.springframework.aop.framework.ReflectiveMethodInvocation * @see org.springframework.aop.support.DelegatingIntroductionInterceptor */ public interface ProxyMethodInvocation extends MethodInvocation { /** * Return the proxy that this method invocation was made through. * @return the original proxy object */ Object getProxy(); /** * Create a clone of this object. If cloning is done before proceed() * is invoked on this object, proceed() can be invoked once per clone * to invoke the joinpoint (and the rest of the advice chain) more than once. * @return an invocable clone of this invocation. * proceed() can be called once per clone. */ MethodInvocation invocableClone(); /** * Create a clone of this object. If cloning is done before proceed() * is invoked on this object, proceed() can be invoked once per clone * to invoke the joinpoint (and the rest of the advice chain) more than once. * @param arguments the arguments that the cloned invocation is supposed to use, * overriding the original arguments * @return an invocable clone of this invocation. * proceed() can be called once per clone. */ MethodInvocation invocableClone(Object[] arguments); /** * Set the arguments to be used on subsequent invocations in the any advice * in this chain. * @param arguments the argument array */ void setArguments(Object[] arguments); /** * Add the specified user attribute with the given value to this invocation. *

Such attributes are not used within the AOP framework itself. They are * just kept as part of the invocation object, for use in special interceptors. * @param key the name of the attribute * @param value the value of the attribute, or null to reset it */ void setUserAttribute(String key, Object value); /** * Return the value of the specified user attribute. * @param key the name of the attribute * @return the value of the attribute, or null if not set * @see #setUserAttribute */ Object getUserAttribute(String key); }





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