What is AnnotationConfigApplicationContext?
AnnotationConfigApplicationContext is a standalone application context which accepts annotated classes as input. For instance, @Configuration or @Component . Beans can be looked up with scan() or registered with register() .
What is diff between BeanFactory and ApplicationContext?
a. One difference between bean factory and application context is that former only instantiate bean when you call getBean() method while ApplicationContext instantiates Singleton bean when the container is started, It doesn’t wait for getBean to be called.
What is ClassPathXmlApplicationContext?
public class ClassPathXmlApplicationContext extends AbstractXmlApplicationContext. Standalone XML application context, taking the context definition files from the class path, interpreting plain paths as class path resource names that include the package path (e.g. “mypackage/myresource. txt”).
What is a BeanFactory?
The BeanFactory is the actual container which instantiates, configures, and manages a number of beans. These beans typically collaborate with one another, and thus have dependencies between themselves.
What is the difference between @configuration and @component?
The main difference between these annotations is that @ComponentScan scans for Spring components while @EnableAutoConfiguration is used for auto-configuring beans present in the classpath in Spring Boot applications.
What is dependency injection in Spring?
Dependency Injection is a fundamental aspect of the Spring framework, through which the Spring container “injects” objects into other objects or “dependencies”. Simply put, this allows for loose coupling of components and moves the responsibility of managing components onto the container.
What can I use instead of XmlBeanFactory?
Hi VineetS , Dont use XmlBeanFactory . ApplicationContext is a sub-interface of BeanFactory . Try to use ApplicationContext and ClassPathXmlApplicationContext .
Why are POJO classes used?
POJO classes POJO stands for Plain Old Java Object. It is an ordinary Java object, not bound by any special restriction other than those forced by the Java Language Specification and not requiring any classpath. POJOs are used for increasing the readability and re-usability of a program.
