How to use the Guava ListenableFuture and the Futures.chain() methods

Question

I have a homework task that requires me to learn how to use the Guava concurrency library.

In the task I have several thread pools, where each one is controlled by a

Answer 1

As Louis mentions, I think that Futures.allAsList etc. could be useful for you. However, I think that Futures.chain does seem useful and appropriate for the situation you describe. Since this is an assignment meant to challenge you, I'm not going to say any more than this: Futures.chain allows you to submit a task for execution upon completion of another task, and it returns a new ListenableFuture representing the result of that task. How does that apply to what you're trying to do?