Additional Notes
Why prefer constructor injection over field injection in Spring?
Track: Java
Topic: Spring Core
Focus: Controllers, Services, Repositories
Java: Controllers, Services, Repositories
Answer
Ensures immutability and helps in testing.
Constructor injection is preferred because it promotes immutability by ensuring all dependencies are provided at object creation. It facilitates testing by allowing dependencies to be mocked or stubbed easily. For example, in a payment service, constructor injection ensures that necessary dependencies like a payment gateway are always injected, preventing null references.
Constructor injection is preferred because it promotes immutability by ensuring all dependencies are provided at object creation. It facilitates testing by allowing dependencies to be mocked or stubbed easily. For example, in a payment service, constructor injection ensures that necessary dependencies like a payment gateway are always injected, preventing null references.
Topics: Controllers, Services, Repositories Java Spring Core