When is setApplicationContext() from interface ApplicationContextAware

[ricko_20171]

Two implementations for configuring spring beans from XML application context files
I.) new XmlBeanFactory( new FileSystemResource ("xml file path")

II.) new FileSystemXmlApplicationContext (" xml file path")


setApplicationContext() gets called in case II not I.

WHY ???

[karldmoore]

XmlBeanFactory isn't an ApplicationContext, it's a BeanFactory hence ApplicationContextAware doesn't work with it. If you want to do the same thing with a BeanFactory, then implement BeanFactoryAware instead.
http://www.springframework.org/docs/...anFactory.html
http://www.springframework.org/docs/...onContext.html

A class which implements the org.springframework.beans.factory.BeanFactoryAware interface is provided with a reference to the BeanFactory that created it, when it is created by that BeanFactory.

http://www.springframework.org/docs/...anfactoryaware

Event handling in the ApplicationContext is provided through the ApplicationEvent class and ApplicationListener interface. If a bean which implements the ApplicationListener interface is deployed into the context, every time an ApplicationEvent gets published to the ApplicationContext, that bean will be notified. Essentially, this is the standard Observer design pattern.

http://www.springframework.org/docs/...onality-events

[ricko_20171]

Appreciate your suggestion. Thanks

XmlBeanFactory isn't an ApplicationContext, it's a BeanFactory hence ApplicationContextAware doesn't work with it. If you want to do the same thing with a BeanFactory, then implement BeanFactoryAware instead.
http://www.springframework.org/docs/...anFactory.html
http://www.springframework.org/docs/...onContext.html


http://www.springframework.org/docs/...anfactoryaware


http://www.springframework.org/docs/...onality-events

[karldmoore]

Not a problem. I can't actually remember the last time I used BeanFactory, usually I need the extra functionality provided by ApplicationContext. It's worth having quick read of the reference manual to make sure this isn't the case for you. Lots of people post with problems because of the differences between BeanFactory and ApplicationContext.
http://www.springframework.org/docs/...nce/beans.html