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What Is Divergence Betwixt Beanfactory As Well As Applicationcontext Inward Saltation Framework

BeanFactory vs ApplicationContext

The departure betwixt BeanFactory and ApplicationContext in Spring framework is to a greater extent than or less other oftentimes asked Spring interview question to a greater extent than often than non asked Java programmers alongside 2 to iv 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"), exactly at that topographic point is to a greater extent than or less departure inwards at that topographic point working in addition to features provided past times them. One departure betwixt edible bean manufactory in addition to application context is that old alone 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 back for getBean to live on called. This interview questions is tertiary on my listing of oftentimes asked leap questions e.g. Setter vs Constructor Injection and  What is default reach of Spring bean. If y'all are preparing for Java interview in addition to expecting to a greater extent than or less 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 banking concern tally my post on to a greater extent than or less Spring utility functions e.g. calculating fourth dimension departure alongside StopWatch and  escaping XML especial characters using Spring HtmlUtils. Coming dorsum to BeanFactory vs ApplicationContext, let’s encounter to a greater extent than or less 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, permit encounter to a greater extent than or less similarity betwixt both of them. Spring provides ii 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 exactly ApplicationContext provides back upward for it.

2) Another departure betwixt BeanFactory vs ApplicationContext is mightiness to divulge number 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 utilization 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 utilization exactly ApplicationContext is to a greater extent than characteristic rich container implementation in addition to should live on favored over BeanFactory

Eclipse  by using next snippet of code :

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

here beans.xml is your leap configuration file in addition to “hello” is a edible bean defined inwards that leap configuration file. Here nosotros convey 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 bound maximum number 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 alongside 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 written report 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 alongside Spring course, i of the best online course of written report to larn RESTful WebServices using Spring framework.

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