[infinispan-dev] NotifyingFuture vs Deferred

[Galder Zamarreño]

On Oct 21, 2010, at 10:48 AM, 이희승 (Trustin Lee) wrote:

> Deferred is not different from NotifyingFuture fundamentally.  The only
> difference is how it handles an exceptional case and callbacks can
> return another Deffered, which makes chained asynchronous operations
> possible.
> 
> This difference opens a lot of possibilities for performing a series of
> asynchronous operations.  It can be compared to dynamic construction of
> interceptor chains.
> 
> So, I'd like to propose to replacing the current NotifyingFuture
> implementation with Deferred.  I think the name 'Deferred' is somewhat
> less intuitive, so retaining the name might be a good idea.
> 
> If you are not familiar with Deferreds, check this out:
> 
> http://twistedmatrix.com/documents/current/core/howto/deferredindepth.html

Just couple of weeks ago I was trying to make some sense of twisted and I gave up, particularly when I started to try to understand this deferred stuff and that tutorial is anything but a tutorial IMO.

For example, why doesn't the following get printed?

    print "\n-------------------------------------------------\n"

Anyway, I need to get a better understand of deferred before I can decide whether deferred should be implemented or not.

> 
> -- 
> Trustin Lee - http://gleamynode.net/
> 
> 
> _______________________________________________
> infinispan-dev mailing list
> infinispan-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/infinispan-dev

--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache