What Is Divergence Betwixt Beanfactory Together With Applicationcontext Inwards Jump Framework

BeanFactory vs ApplicationContext

The departure betwixt BeanFactory and ApplicationContext in Spring framework is closed to other oft asked Spring interview question by in addition to large asked Java programmers amongst 2 to iv years sense inwards Java in addition to Spring. Both BeanFactory and ApplicationContext provides a means to acquire a edible bean from Spring IOC container past times calling getBean("bean name"), only at that topographic point is closed to departure inwards at that topographic point working in addition to features provided past times them. One departure betwixt edible bean manufacturing works life in addition to application context is that quondam exclusively instantiate edible bean when y'all telephone telephone getBean() method spell ApplicationContext instantiates Singleton edible bean when the container is started,  It doesn't hold off for getBean to endure called. This interview questions is 3rd on my listing of oft asked saltation questions e.g. Setter vs Constructor Injection and  What is default orbit of Spring bean. If y'all are preparing for Java interview in addition to expecting closed to Spring framework question, It’s worth preparing those questions. 

If y'all are novel inwards Spring framework in addition to exploring Spring API in addition to classes than y'all would similar cheque my post on closed to 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 closed to to a greater extent than departure betwixt them inwards adjacent section.

BeanFactory vs ApplicationContext inwards Spring

Before seeing departure betwixt ApplicationContext in addition to BeanFactory, allow run into closed to similarity betwixt both of them. Spring provides 2 kinds of IOC container, i 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 brusk BeanFactory provides basic IOC in addition to DI features spell 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 only ApplicationContext provides back upward for it.

2) Another departure betwixt BeanFactory vs ApplicationContext is mightiness to reveal effect to beans that are registered every bit listener.

3) One of the pop implementation of BeanFactory interface is XMLBeanFactory while i 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 y'all are using machine wiring in addition to using BeanFactory than y'all demand to register AutoWiredBeanPostProcessor using API which y'all tin configure inwards XML if y'all are using  ApplicationContext. In summary BeanFactory is OK for testing in addition to non production usage only 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 saltation configuration file in addition to “hello” is a edible bean defined inwards that saltation configuration file. Here nosotros accept used ClassPathXmlApplicationContext  which is an implementation of ApplicationContext interface inwards Spring.

Further Reading
Spring Framework 5: Beginner to Guru
Spring Master Class - Beginner to Expert
How to boundary maximum issue of concurrent active session inwards Java spider web app

How to implement LDAP authentication inwards Active directory using Spring Security

How to convert Collection to coma delimited String using Spring

How to acquire ServletContext object inwards Spring controller

Top 10 Struts Interview questions amongst answers

Difference betwixt URL encoding in addition to URL rewriting inwards JSP

P.S. - If y'all are an experienced Java/JEE Program in addition to desire to larn Spring Security end-to-end, I recommend Learn Spring Security course of teaching past times Eugen Paraschiv, The definitive guide to secure your Java application. It's useful for both junior in addition to experienced Java Web developers.

He is too writer of REST amongst Spring course, i of the best online course of teaching to larn RESTful WebServices using Spring framework.


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