What is an IoC container?
IoC Container (a.k.a. DI Container) is a framework for implementing automatic dependency injection. … The IoC container creates an object of the specified class and also injects all the dependency objects through a constructor, a property or a method at run time and disposes it at the appropriate time.
Where is IoC container defined?
The Spring IoC container is at the core of the Spring Framework. The container will create the objects, wire them together, configure them, and manage their complete life cycle from creation till destruction. The Spring container uses dependency injection (DI) to manage the components that make up an application.
What is IoC container and its type?
There are basically two types of IOC Containers in Spring: BeanFactory: BeanFactory is like a factory class that contains a collection of beans. It instantiates the bean whenever asked for by clients. ApplicationContext: The ApplicationContext interface is built on top of the BeanFactory interface.
What is configuration class in Java?
A Configuration object is responsible for specifying which LoginModules should be used for a particular application, and in what order the LoginModules should be invoked. A login configuration contains the following information.
What is the use of bean class in Java?
Why use JavaBean? According to Java white paper, it is a reusable software component. A bean encapsulates many objects into one object so that we can access this object from multiple places. Moreover, it provides easy maintenance.
What is IoC and DI in spring?
Inversion of Control(IoC) is also known as Dependency injection (DI). The Spring container uses Dependency Injection (DI) to manage the components that build up an application and these objects are called Spring Beans. … IoC is also known as dependency injection (DI).
Which statements are true about IoC?
Which statements are true about IOC(Inversion of Control) ? Decoupling of the execution of a certain task from implementation. Each module can focus on what it is designed for. Replacing modules should not affect to other modules.