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Spring Framework example source code file (MethodInvokingRunnable.java)

This example Spring Framework source code file (MethodInvokingRunnable.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

argumentconvertingmethodinvoker, beanclassloaderaware, classloader, classnotfoundexception, classnotfoundexception, initializingbean, initializingbean, invocation, invocationtargetexception, invocationtargetexception, nosuchmethodexception, nosuchmethodexception, reflection, string, throwable

The Spring Framework MethodInvokingRunnable.java source code

 * Copyright 2002-2008 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.springframework.scheduling.support;

import java.lang.reflect.InvocationTargetException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.support.ArgumentConvertingMethodInvoker;
import org.springframework.util.ClassUtils;

 * Adapter that implements the {@link Runnable} interface as a configurable
 * method invocation based on Spring's MethodInvoker.
 * <p>Inherits common configuration properties from
 * {@link org.springframework.util.MethodInvoker}.
 * <p>Useful to generically encapsulate a method invocation as timer task
 * for <code>java.util.Timer, in combination with a
 * {@link org.springframework.scheduling.timer.DelegatingTimerTask} adapter.
 * Can also be used with JDK 1.5's <code>java.util.concurrent.Executor
 * abstraction, which works with plain Runnables.
 * <p>Extended by Spring's
 * {@link org.springframework.scheduling.timer.MethodInvokingTimerTaskFactoryBean}
 * adapter for <code>java.util.TimerTask. Note that you can populate a
 * ScheduledTimerTask object with a plain MethodInvokingRunnable instance
 * as well, which will automatically get wrapped with a DelegatingTimerTask.
 * @author Juergen Hoeller
 * @since 1.2.4
 * @see org.springframework.scheduling.timer.ScheduledTimerTask#setRunnable(Runnable)
 * @see java.util.concurrent.Executor#execute(Runnable)
public class MethodInvokingRunnable extends ArgumentConvertingMethodInvoker
		implements Runnable, BeanClassLoaderAware, InitializingBean {

	protected final Log logger = LogFactory.getLog(getClass());

	private ClassLoader beanClassLoader = ClassUtils.getDefaultClassLoader();

	public void setBeanClassLoader(ClassLoader classLoader) {
		this.beanClassLoader = classLoader;

	protected Class resolveClassName(String className) throws ClassNotFoundException {
		return ClassUtils.forName(className, this.beanClassLoader);

	public void afterPropertiesSet() throws ClassNotFoundException, NoSuchMethodException {

	public void run() {
		try {
		catch (InvocationTargetException ex) {
			logger.error(getInvocationFailureMessage(), ex.getTargetException());
			// Do not throw exception, else the main loop of the scheduler might stop!
		catch (Throwable ex) {
			logger.error(getInvocationFailureMessage(), ex);
			// Do not throw exception, else the main loop of the scheduler might stop!

	 * Build a message for an invocation failure exception.
	 * @return the error message, including the target method name etc
	protected String getInvocationFailureMessage() {
		return "Invocation of method '" + getTargetMethod() +
				"' on target class [" + getTargetClass() + "] failed";


Other Spring Framework examples (source code examples)

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my book on functional programming


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