Not every set of operations you need to synchronize can be squished into a collection operation (add, get, etc.). If all you need to do is make sure things can

Not every set of operations you need to synchronize can be squished into a collection operation (add, get, etc.). If all you need to do is make sure things can get and add stuff to a queue or list concurrently, well yah, that's definitely a good place to be. Can also just shove it all off on your DB