How To Export Spring Managed Bean To JNDI

Sometimes, it is necessary to export a spring managed bean to JNDI context. Here I want to show how do it.

In spring, there is a bean that provides a similar functionality for exporting to MBean server: MBeanExporter. Unfortunately, there is no standard JNDI bean exporter implementation in spring (current version is 2.5.6) - (Why?).
But it's easy to write it youself:

package com.example.spring.jndi.export;

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

public class JndiExporter implements InitializingBean, DisposableBean {

 private String jndiName;

 private Object bean;

 private final JndiTemplate jndiTemplate = new JndiTemplate();

 public String getJndiName() {
  return jndiName;
 }

 public void setJndiName(String jndiName) {

  this.jndiName = jndiName;
 }

 public Object getBean() {
  return bean;
 }

 public void setBean(Object bean) {
  this.bean = bean;
 }


 public void afterPropertiesSet() throws Exception {
  jndiTemplate.bind(jndiName, bean);
 }

 public void destroy() throws Exception {
  if (bean != null && jndiName != null && bean == jndiTemplate.lookup(jndiName)) {
   jndiTemplate.unbind(jndiName);
  }
 }
}

Add following fragment to spring configuration file:

<bean id="myBean" class="com.example.MyBean"/>

<bean class="com.example.spring.jndi.export.JndiExporter">
       <property name="bean" ref="myBean" />
       <property name="jndiName" value="MyJNDIName"/>
</bean>

Don't forget to make your bean serializable by implementing java.io.Serializable interface.
Now we can lookup exported bean by adding to the spring config fil:
<jee:jndi-lookup id="myJndiBean" jndi-name="MyJNDIName" proxy-interface="com.example.IMyBean" lookup-on-startup="false"/>

That's all, folks!