Have you ever wonder why singleton is the default scope for Spring beans? Why isn’t it prototype?
It’s not a random choice. It’s because the vast majority of business logic we create can be safely kept in stateless objects. And the best choice for stateless beans is the singleton scope. The prototype scope is better for stateful beans to avoid multithreading issues.
Yet, sometimes you need to mix both and use a prototype bean in a singleton bean. This particular case is a bit tricky. In this article, I’m going to explain to you different ways of accessing prototypes in singletons.
So let’s begin.
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