What Is Departure Betwixt Beanfactory Too Applicationcontext Inwards Saltation Framework

BeanFactory vs ApplicationContext

The departure betwixt BeanFactory and ApplicationContext in Spring framework is simply about other oft asked Spring interview question to a greater extent than often than non asked Java programmers amongst 2 to four years sense inwards Java in addition to Spring. Both BeanFactory and ApplicationContext provides a agency to acquire a edible bean from Spring IOC container past times calling getBean("bean name"), but in that place is simply about departure inwards in that place working in addition to features provided past times them. One departure betwixt edible bean manufacturing flora in addition to application context is that erstwhile solely instantiate edible bean when yous telephone band getBean() method piece ApplicationContext instantiates Singleton edible bean when the container is started,  It doesn't hold off for getBean to endure called. This interview questions is tertiary on my listing of oft asked jump questions e.g. Setter vs Constructor Injection and  What is default range of Spring bean. If yous are preparing for Java interview in addition to expecting simply about Spring framework question, It’s worth preparing those questions. 

If yous are novel inwards Spring framework in addition to exploring Spring API in addition to classes than yous would similar depository fiscal establishment jibe my post service on simply about Spring utility functions e.g. calculating fourth dimension departure amongst StopWatch and  escaping XML exceptional characters using Spring HtmlUtils. Coming dorsum to BeanFactory vs ApplicationContext, let’s run into simply about to a greater extent than departure betwixt them inwards side past times side section.

BeanFactory vs ApplicationContext inwards Spring

Before seeing departure betwixt ApplicationContext in addition to BeanFactory, permit run into simply about similarity betwixt both of them. Spring provides 2 kinds of IOC container, ane is BeanFactory and other is ApplicationContext. Syntactically BeanFactory and ApplicationContext both are Java interfaces in addition to ApplicationContext extends BeanFactory. Both of them are configuration using XML configuration file. In curt BeanFactory provides basic IOC in addition to DI features piece ApplicationContext provides advanced features. Apart from these, Here are few to a greater extent than departure betwixt BeanFactory and ApplicationContext which is mostly based upon features supported past times them.

1) BeanFactory doesn't render back upward for internationalization i.e. i18n but ApplicationContext provides back upward for it.

2) Another departure betwixt BeanFactory vs ApplicationContext is mightiness to lay out final result to beans that are registered every bit listener.

3) One of the pop implementation of BeanFactory interface is XMLBeanFactory while ane of the pop implementation of ApplicationContext interface is ClassPathXmlApplicationContext. On Java spider web application nosotros usage WebApplicationContext  which extends ApplicationContext interface in addition to adds getServletContext method.

4) If yous are using automobile wiring in addition to using BeanFactory than yous demand to register AutoWiredBeanPostProcessor using API which yous tin configure inwards XML if yous are using  ApplicationContext. In summary BeanFactory is OK for testing in addition to non production usage but ApplicationContext is to a greater extent than characteristic rich container implementation in addition to should endure favored over BeanFactory

Eclipse  by using next snippet of code :

public static void main(String args[]){
    ApplicationContext ctx =new ClassPathXmlApplicationContext("beans.xml");
    Hello howdy =(Hello) ctx.getBean("hello");
    hello.sayHello("John");
}

here beans.xml is your jump configuration file in addition to “hello” is a edible bean defined inwards that jump configuration file. Here nosotros accept used ClassPathXmlApplicationContext  which is an implementation of ApplicationContext interface inwards Spring.

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