[rules-users] How can we make the ‘over window:time’ parameter being configurable?

[Matteo Mortari]

Hi,
I'm quite intrigued by this question also myself, I would like to know more
about what you mean by "configurable" ?

For instance you can have the window 'declared'

declare window SensorReading30s
    SensorReading() over window:time(30s) from entry-point DEFAULT
end

and also use this custom window name in the accumulate rule.

Do you mean by "configurable" , known at runtime and varying?

A solution I can think of in that case, a specific rule with the
housekeeping style; but I'm quite worried about performance issues may
arise.

Just my 2c, hope maybe helps?


On Tue, Jun 10, 2014 at 4:18 AM, moonbeam <jplaberge at magenta.ca> wrote:

> How can we make the ‘over window:time’ parameter being configurable?
>
> Something similar to the following rule (that does not compile at all).
>  See
> the $windowTime variable.
>
>
> declare TemperatureThreshold
>         windowTime : String = "30s"
>         max : long = 70
> end
>
> declare SensorReading
>         @role( event )
>         temperature : String = "40"
> end
>
> rule "Sound the alarm in case temperature rises above threshold"
> when
>    TemperatureThreshold( $max : max, $windowTime : windowTime )
>    Number( doubleValue > $max ) from accumulate(
>    SensorReading( $temp : temperature ) over window:time( $windowTime ),
>    average( $temp ) )
> then
>    // sound the alarm
> end
>
>
>
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/How-can-we-make-the-over-window-time-parameter-being-configurable-tp4029932.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
>
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