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
Open Eclipse
Click on menu New -> Others
In wizards type "Java Project" and Select "Java Project"
Click Next
Enter project name as "BeanInitAndDestroyUsingInterface", then click Next
Goto Libraries tab, then click on Add External JARs, then select Spring's 21 Framework Jars and commons-logging-1.1.jar.
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!");
}
}
