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Initializingbean and Disposablebean in Spring Framework with Example
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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!
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