What is the use of IoC Container?

What is the use of IoC Container?

IoC Container (a.k.a. DI Container) is a framework for implementing automatic dependency injection. It manages object creation and it’s life-time, and also injects dependencies to the class.

What are the two IoC Container in Spring?

There are two types of IoC containers. They are: BeanFactory. ApplicationContext.

What is IoC principle?

From Wikipedia, the free encyclopedia. In software engineering, inversion of control (IoC) is a programming principle. IoC inverts the flow of control as compared to traditional control flow. In IoC, custom-written portions of a computer program receive the flow of control from a generic framework.

What are the benefits of IoC in Spring?

The benefits of inversion of control in Spring and Java are a developer can maintain the creation, configuration, provisioning and lifecycle of all container-managed objects separately from the code where they are referenced. As such, IoC eases the software developer’s concern about these aforementioned activities.

What is IoC example?

With IoC: You can ask for “fruit”. You can get different fruits each time you get served. for example, apple, orange, or water melon. So, obviously, IoC is preferred when you like the varieties.

Why do we use IoC in spring?

Spring IoC Container is the core of Spring Framework. It creates the objects, configures and assembles their dependencies, manages their entire life cycle. The Container uses Dependency Injection(DI) to manage the components that make up the application.

Which IoC container is best?

You can waste days evaluating IOC containers. The top ones are quite similar. There is not much in this, but the best ones are StructureMap and AutoFac.

What is hibernate annotation?

Hibernate annotations are the newest way to define mappings without the use of XML file. You can use annotations in addition to or as a replacement of XML mapping metadata. Hibernate Annotations is the powerful way to provide the metadata for the Object and Relational Table mapping.

What is difference between @bean and @component?

@Component is a class level annotation whereas @Bean is a method level annotation and name of the method serves as the bean name. @Component need not to be used with the @Configuration annotation where as @Bean annotation has to be used within the class which is annotated with @Configuration.

Why is a Spring container known as an IoC container?

The advantage of Spring instead of developer create the object and establish the dependencies, the spring container create the object and establish the dependencies. This process is called as Inversion of Control (IOC).

Why to use an IoC container?

– Improves code Maintainability – Code reusability – Loosely coupled – Reduce class coupling – Improves application Testing

What is an IoC container?

IoC containers are used to simplify the provision of a dependant class’s dependencies. In the most basic form, an IoC container is an implementation of the service locator design pattern that permits pre-instantiated objects to be registered with the container and later extracted.

What is a Spring container?

Spring container is the heart of Spring. All the magic is done by this container. The container is responsible for creating Objects, Wire the Objects between themselves, manage Objects Life Cycle from creation to destruction.