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From David Yan <da...@datatorrent.com>
Subject Re: Operator Utility To Convert Time Into Number Of Windows
Date Mon, 14 Dec 2015 17:46:41 GMT
Similar utilities are already in WindowGenerator in apex core.  Maybe add
to that class instead of creating a separate class?

David
On Dec 11, 2015 4:13 PM, "Timothy Farkas" <tim@datatorrent.com> wrote:

> I'd like to propose creating an operator utility in
> com.datatorrent.lib.operatorutils to convert time into number of windows
> and tuples / second into tuples / window. The way in which this currently
> can be specified is through a property like operationWindowCount or
> tuplesPerWindow. This works but I've observed that this can lead to
> confusion. The confusion comes from the fact that the people who develop
> apps are not necessarily the ones who test deployment configurations and
> manage the apps, so they think in time not application windows. Also the
> default application window count and streaming window size is not common
> knowledge, so it's not easy to compute the conversion from windows to time.
> This small utility method could be reused across operators.
>
> Any feedback?
>
> Thanks,
> Tim
>

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