Re: [expath] Re: New Modules? Promise Module, Async Module

I'm trying to wrap my head around Promise and Async in a language designed
to allow lazy evaluation.

In general, XQuery tries very hard to avoid saying when things happen or in
what order.  I was just beginning to explore whether other functional
languages provide these features and why ...

Jonathan

On Thu, Mar 3, 2016 at 11:30 AM, Christian Grün <christian.gruen@gmail.com>
wrote:

> ...no one? ;)
> Am 29.02.2016 16:24 schrieb "Christian Grün" <christian.gruen@gmail.com>:
>
>> Dear all,
>>
>> James Wright has recently presented his XQuery Promise Module in
>> Prague (Proceedings, 139ff [1]). His code is available at GitHub [2],
>> and we were wondering if people in the community were interested in
>> seeing the ideas behind this module standardized?
>>
>> The result could be two specifications:
>>
>> 1. The Promise Module
>>
>> * This module is inspired by the Promise Pattern as it is available in
>> e.g. jQuery and AngularJS.
>>
>> * It includes functions like defer(), then(), fail() and others (see
>> the links for more details)
>>
>> * It seems to be possible to implement 90% or even 100% of the module
>> in pure XQuery.
>>
>>
>> 2. The Async Module
>>
>> * In its initial version, the module contains a single async:fork-join
>> function, which can be used to process a sequence of XQuery functions
>> in parallel [3].
>>
>> * The module could be enhanced with an extension of the FLWOR
>> expressions and an 'async' keyword in for clauses [4].
>>
>> * It could further be extended with two functions async:fork and
>> async:join. The first function would trigger the evaluation of a query
>> (supplied as string) as a separate process; the second function could
>> be called to fetch the result of the first function.
>>
>> Thoughts are welcome; thanks in advance,
>> Christian
>>
>> [1] http://archive.xmlprague.cz/2016/files/xmlprague-2016-proceedings.pdf
>> [2] http://github.com/james-jw/xq-promise/
>> [3] https://github.com/james-jw/xq-promise/issues/16
>> [4] https://github.com/james-jw/xq-promise/issues/15
>>
> --
> You received this message because you are subscribed to the Google Groups
> "EXPath" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to expath+unsubscribe@googlegroups.com.
> To post to this group, send email to expath@googlegroups.com.
> Visit this group at https://groups.google.com/group/expath.
> For more options, visit https://groups.google.com/d/optout.
>