Constructor dependency injection

Constructor dependency injection is a design pattern used to provide the dependencies required by a class through its constructor. This promotes loose coupling and makes the code more testable and maintainable.

• Modularity and Separation of Concerns: CDI promotes clear and limited responsibilities in classes by injecting dependencies from outside. This modular design improves code maintainability.
• Decoupling: CDI reduces tight coupling by injecting dependencies externally. It enables easy swapping of implementations or updating dependencies without impacting the consuming class.
• Testability: Constructor injection simplifies unit testing by enabling the substitution of real dependencies with mocks or stubs. This enhances the effectiveness of testing isolated components.