[infinispan-dev] NotifyingFuture vs Deferred

[Mircea Markus]

On 22 Oct 2010, at 16:11, Galder Zamarreño wrote:

> 
> 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.
+1. 
> 
> 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/
>> 
>> 
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> 
> --
> Galder Zamarreño
> Sr. Software Engineer
> Infinispan, JBoss Cache
> 
> 
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