Additional Notes
How does constructor injection prevent partially constructed objects?
Track: Java
Topic: Dependency Injection
Focus: Constructor vs Field Injection
Java: Constructor vs Field Injection
Answer
It ensures all dependencies are set before use.
Constructor injection guarantees that all required dependencies are provided when an object is instantiated, preventing the object from being in an invalid state. For instance, a ShoppingCart object will not be created without its required dependencies, such as an InventoryService.
Constructor injection guarantees that all required dependencies are provided when an object is instantiated, preventing the object from being in an invalid state. For instance, a ShoppingCart object will not be created without its required dependencies, such as an InventoryService.
Topics: Constructor vs Field Injection Dependency Injection Java