Table of Contents
Is IoC and dependency injection the same thing?
Inversion of control is a design principle which helps to invert the control of object creation. Dependency Injection is a design pattern which implements IOC principle. DI provides objects that an object needs.
Which of the following is an IoC or dependency injection?
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. Spring implements DI by either an XML configuration file or annotations.
What is IoC software engineering?
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 is dependency injection and IoC in spring?
IOC is technique where you let someone else to create the object for you. And the someone else in case of spring is IOC container. Dependency Injection is a technique where one object supplies the dependency of another object.
What is the difference 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 the basic concept of spring?
Spring is a lightweight framework. It can be thought of as a framework of frameworks because it provides support to various frameworks such as Struts, Hibernate, Tapestry, EJB, JSF, etc. The framework, in broader sense, can be defined as a structure where we find solution of the various technical problems.
What is the difference between dependency injection and factory pattern?
Dependency Injection is more of a architectural pattern for loosely coupling software components. Factory pattern is just one way to separate the responsibility of creating objects of other classes to another entity. Factory pattern can be called as a tool to implement DI.