Additional Notes
What happens if a required dependency is missing with constructor injection?
Track: Java
Topic: Spring Core
Focus: Controllers, Services, Repositories
Java: Controllers, Services, Repositories
Answer
The application context fails to start. Frame the concept in practical terms so you can explain it during interview discussion.
If a required dependency is not available when using constructor injection, Spring fails to initialize the bean and the application context won't start. This early failure is beneficial because it prevents runtime errors later. For example, if a ProductService depends on a ProductRepository and it's missing, the application will not start, prompting immediate resolution.
If a required dependency is not available when using constructor injection, Spring fails to initialize the bean and the application context won't start. This early failure is beneficial because it prevents runtime errors later. For example, if a ProductService depends on a ProductRepository and it's missing, the application will not start, prompting immediate resolution.
Topics: Controllers, Services, Repositories Java Spring Core