Building Applications with Spring 5 and Kotlin

Dependency injection

When we talk about the Spring Framework here, the first thing we need to mention is dependency injection. This is a useful feature that is required in everyday development. Every developer tries to create classes that are as independent as possible. Developers try to create a system where classes are not aware of each other, that is—they are loosely coupled. Dependency injection helps developers in wiring those classes together and, at the same time, keeping them independent.

How do we achieve this?

In modern software development, dependency injection is a technique where object A provides the dependencies for another object, object B. So, the dependency is this provided object. Injection represents a dependency providing ...