Knowledge Walls
J2EE Technologies Tutorial
Hyderabad, Andhra Pradesh, India
Initializingbean and Disposablebean in Spring Framework with Example
2993 Views
Hints 
Below is an example of "Initializingbean and Disposablebean in Spring Framework with Example"
Step.1 Start a Java Project with required jars 
  1. Open Eclipse
  2. Click on menu New -> Others
  3. In wizards type "Java Project" and Select "Java Project"
  4. Click Next
  5. Enter project name as "BeanInitAndDestroyUsingInterface", then click Next
  6. Goto Libraries tab, then click on Add External JARs, then select Spring's 21 Framework Jars and commons-logging-1.1.jar.
  7. Click Finish.
Step.2 Project Explorer Preview 
RunMyProgram.java
package com.springexamples;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class RunMyProgram {
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
		ProcessEngine process = (ProcessEngine) context.getBean("my_process");
			process.doProcess();
	}
}
ProcessEngine.java
package com.springexamples;

import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;

public class ProcessEngine implements InitializingBean,DisposableBean {
	private int processId;

	public int getProcessId() {
		return processId;
	}

	public void setProcessId(int processId) {
		this.processId = processId;
	}
	
	
	/* afterPropertiesSet method is a InitializingBean method. 
	 * instead of init-method of bean xml configuration */
	@Override
	public void afterPropertiesSet() throws Exception {
		System.out.println("Process Bean initiated!");
	}
	
	public void doProcess(){
		System.out.println("Running "+this.processId+" Process!");
	}

	/* destroy method is a DisposableBean method. 
	 * instead of destroy-method of bean xml configuration */
	@Override
	public void destroy() throws Exception {
		System.out.println("Process Bean Destroyed!");
	}
}
beans.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
	
	<bean id="my_process" class="com.springexamples.ProcessEngine">
		<property name="processId" value="123222322" />
	</bean>

</beans>
Output 
Process Bean initiated!
Running 123222322 Process!
Download as Zip 
Link to download
BeanInitAndDestroyUsingInterface
Hints.
Click on File menu. then click "Download"
Best Lessons of "Spring 3.0 Examples"
Top lessons which are viewed more times.
  Copyright © 2014 Knowledge walls, All rights reserved
KnowledgeWalls
keep your tutorials and learnings with KnowledgeWalls. Don't lose your learnings hereafter. Save and revise it whenever required.
Click here for more details