Let's first check the getUser method from the session bean:
@Asynchronous public Future<User> getUser(){ long id = new Date().getTime(); User user = new User(id, "User " + id); return new AsyncResult(user); }
Once we user the @Asynchronous annotation, we have to turn its returning value to a Future instance of something (in our case, User).
We also created a void method to show you how to create a non-blocking code with session beans:
@Asynchronous public void doSomeSlowStuff(User user){ try { TimeUnit.SECONDS.sleep(5); } catch (InterruptedException ex) { System.err.println(ex.getMessage()); } }
And finally, we created our calling endpoint:
@GET public void asyncService(@Suspended AsyncResponse response){ try { Future<User> ...
