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Spring Framework example source code file (ProxyMethodInvocation.java)

This example Spring Framework source code file (ProxyMethodInvocation.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

methodinvocation, methodinvocation, object, object, proxymethodinvocation, proxymethodinvocation

The Spring Framework ProxyMethodInvocation.java source code

/*
 * 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.
 *
 * <p>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 <code>proceed()
	 * is invoked on this object, <code>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.
	 * <code>proceed() can be called once per clone.
	 */
	MethodInvocation invocableClone();

	/**
	 * Create a clone of this object. If cloning is done before <code>proceed()
	 * is invoked on this object, <code>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.
	 * <code>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.
	 * <p>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 <code>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 <code>null if not set
	 * @see #setUserAttribute
	 */
	Object getUserAttribute(String key);

}

Other Spring Framework examples (source code examples)

Here is a short list of links related to this Spring Framework ProxyMethodInvocation.java source code file:

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