Dependency injection
We have successfully generated our own Spring Boot project, and now, we will start learning the concepts of Spring, and one of the most important concepts we need to understand is dependency injection. As we develop our backend using Spring Boot, we will mainly use dependency injection throughout our development, as this makes our Java program modular and enables easier switching of implementations.
Dependency injection is an essential feature of object-oriented programming languages, but first, let’s discuss the concept of inversion of control, which is what dependency injection is trying to achieve.
Inversion of control
Inversion of Control (IoC) is the design pattern used for object-oriented programming languages. IoC is the concept of inverting the flow of your program, and it is used for decoupling the components in your application, making your piece of code reusable and modular. Hence, the IoC design pattern will provide us with a way to...