Additional Notes
What happens if a Singleton bean is injected with a Prototype bean?
Track: Java
Topic: Spring Core
Focus: Bean Scope
Java: Bean Scope
Answer
Prototype is created once. Frame the concept in practical terms so you can explain it during interview discussion.
When a Singleton bean is injected with a Prototype bean, the Prototype bean is instantiated only once when the Singleton is created. This means the Prototype bean behaves like a Singleton. To ensure a new instance of the Prototype is created each time, you can use a `@Lookup` method or `ObjectProvider`. For example, requesting a unique ID generator as a Prototype within a Singleton will not generate new IDs unless properly managed.
When a Singleton bean is injected with a Prototype bean, the Prototype bean is instantiated only once when the Singleton is created. This means the Prototype bean behaves like a Singleton. To ensure a new instance of the Prototype is created each time, you can use a `@Lookup` method or `ObjectProvider`. For example, requesting a unique ID generator as a Prototype within a Singleton will not generate new IDs unless properly managed.
Topics: Bean Scope Java Spring Core