[rules-users] Variable length sliding windows?

[Edson Tirelli]

   Nope, only constants.

   Edson

On Thu, Mar 1, 2012 at 11:25 AM, Lauer, Will C <Will.Lauer at ca.com> wrote:

> I'm evaluating the use of Drools Fusion for a new project and have a
> question about sliding windows that wasn't clear from the documentation.
> Does the time specification in a sliding window need to be hardcoded in the
> rule, or can it be derived from something else? Basically, I'm wondering
> whether I can write a rule that looks something like
>
>        when
>                ...
>                Window ($win : length)
>                Number (intValue > $someValue) from accumulate (
>                        Sample($len: length, value > $someThreashold) over
> window:time ($win),
>                        sum($len) )
>        then
>                ...
>        end
>
> I know window:time() supports constant values like "10m", but can the
> window be driven from one of the other facts in the LHS picked up by the
> LHS of the rule?
>
>
> Will Lauer
> CA Technologies
> Sr Software Architect
> Tel:  +1-713-625-9410
> Cell: +1-979-820-2210
> Will.Lauer at ca.com
>
>
>
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>



-- 
  Edson Tirelli
  JBoss Drools Core Development
  JBoss by Red Hat @ www.jboss.com
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