What is it for?

Execute a block of code for each and every bean that is initialised.

  • Bean Post Processor is a separate class
  • Spring executes the code in the Post Processor after initializing each and every bean

Example

Print the Name of Every Bean that is Initialized

DisplayNameBeanPostProcessor

package com.skills421.examples.spring;

public class DisplayNameBeanPostProcessor implements BeanPostProcessor
{
    public Object postProcessBeforeInitialization(Object bean, String beanName)
    {
        return bean;
    }

    public Object postProcessAfterInitialization(Object bean, String beanName)
    {
        System.out.println("Initialized Bean: "+beanName);
        return bean;
    }
}

Register the BeanPostProcessor with Spring

Spring.xml

<bean class="com.skills421.examples.spring.DisplayNameBeanPostProcessor" />
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s