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Example of BeanFactoryAware in Spring

By Arvind Rai, April 19, 2013
If a bean in spring implements BeanFactoryAware then that bean has to implement a method that is setBeanFactory. And when that bean is loaded in spring container, setBeanFactory is called. BeanFactoryAware belongs to the package org.springframework.beans.factory. BeanFactoryAware awares the bean for its BeanFactory.
A.java
package com.concretepage;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
public class A  implements BeanFactoryAware{
	@Override
	public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
	    System.out.println("setBeanFactory:"+beanFactory);
	}
	public A(){
		System.out.println("Bean A is Initialized.");
	}
} 

app-conf.xml
<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="testA" class="com.concretepage.A"/>
</beans>  
SpringTest.java
package com.concretepage;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class SpringTest {
	public static void main(String[] args) {
		AbstractApplicationContext  context = new ClassPathXmlApplicationContext("app-conf.xml");		
		context.registerShutdownHook();
	}
} 
Output
Bean A is Initialized.
setBeanFactory:org.springframework.beans.factory.support.DefaultListableBeanFactory@16df1832: defining beans [testA]; root of factory hierarchy 
POSTED BY
ARVIND RAI
ARVIND RAI
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