[rules-users] [FUSION] Detect the absence of an event when you don't know that the event is missing.

[Mauricio Salatino]

You can use it without time.. but each time that you have an EventA and not
an EventB the will be activated

2010/10/22 Tina Vießmann <tviessmann at stud.hs-bremen.de>

>  Yeah, normally I would solve it that way. But you're using a time (1d)
> which I unfortunately don't know off in my scenario.
>
> I'm afraid that there will be no other solution than that I have to use a
> time...
>
> Thanks anyway :)
>
>
>
> Sounds that you can use the Not Conditional Element for that right?
> something like
>
>  $a: EventA()
> not EventB(this after[1d] $a)
>
>
>
>  On Fri, Oct 22, 2010 at 5:49 PM, Tina Vießmann <
> tviessmann at stud.hs-bremen.de> wrote:
>
>> Hi,
>>
>> I'm working on a use case where I want to know if 20 events with a
>> specific value are contained in at maximum the last 150 events. So far I
>> know what have to do. ;-)
>> My problem is that as extension to my condition, the rule shall also
>> trigger if one ore more events are missing. But I don't know the time
>> interval with which the events arrive, so that I don't know when a new
>> event should arrive and by implication I don't know about the absence of
>> an event.
>>
>> In our environment events arrive in "counts" and not in a specific time
>> interval as e.g. ever 1 second.  So we talk about the last two or 150
>> counts if we talk about the last two ore 150 data packages received.
>> Yes, behind a count always is a time interval, but only the data source
>> knows about the time interval. My recipient doesn't
>> Also the data of a data package is inserted in the working memory
>> independently, so that I have e.g. 10 data events instead of a single
>> package event.
>> (Now that you know that, my first sentence would be correctly: I want to
>> know if 20 counts of the max. last 150 counts have contained a specific
>> event.)
>>
>> If my explanation (or my attempt to explain) is difficult to understand,
>> please ask me what you want to know.
>>
>> I would be very happy about any ideas.
>>
>> Thank you.
>> Tina
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>>
>
>
>
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>  - Salatino "Salaboy" Mauricio -
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 - CTO @ http://www.plugtree.com
 - MyJourney @ http://salaboy.wordpress.com
 - Co-Founder @ http://www.jbug.com.ar

 - Salatino "Salaboy" Mauricio -
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