How can I make A future of future into one future object?

Question

Env: Akka 2.1, scala version 2.10.M6, JDK 1.7,u5

Now is my problem: I have:

future1 = Futures.future(new Callable>(){...         


        

Answer 1

Short answer (English): flatMap dat sh!t

Shorter answer (Scala):

flatMap(identity)

Shortest answer: (Scala 2.12):

flatten

Long answer (Java):

flatMap(new Mapper>,Future>() {
  @Override public Future apply(final Future f) { return f; }
})