[openstack-dev] [Mistral] For-each

Dmitri Zimine dzimine at stackstorm.com
Tue Dec 16 01:11:45 UTC 2014

I had a short user feedback sessions with Patrick and James, the short summary is:

1) simplify the syntax to optimize for the most common use case
2) 'concurrency' is the best word - but bring it out of for-each to task level, or task/policies 
3) all-permutation - relatively rare case, either implement as a different construct - like ‘for-every’, or use workaround.

Another feedback is  for-each as a term is confusing: people expect a different behavior (e.g., run sequentially, modify individual elements)
while it is effectively a ‘map’ function. No good suggestion on the better name yet. Keep on looking.

The details are added into the document.


On Dec 15, 2014, at 2:00 AM, Nikolay Makhotkin <nmakhotkin at mirantis.com> wrote:

> Hi,
> Here is the doc with suggestions on specification for for-each feature.
> You are free to comment and ask questions.
> https://docs.google.com/document/d/1iw0OgQcU0LV_i3Lnbax9NqAJ397zSYA3PMvl6F_uqm0/edit?usp=sharing
> -- 
> Best Regards,
> Nikolay

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