[rules-users] Accumulate a on event combinations

[gboro54]

Doesn't accumulate have a count by itself? I guess I am trying to figure out
if it is possible to do something like:

rule "Raise alarm"
when
   Number( intValue> 5) from
    accumulate(  $a:EventA( $id:id ) 
                      EventB(eventAId=$id, this after [0s,5s] $a);
                count($a) )
then
    //do stuff
end


laune wrote
> An accumulate with explicitly coded init/action/result lets you accumulate
> into
> a custom object that provides exactly the information you want: just
> that there is a matching number of As and Bs, the counts for As and
> Bs, two lists with As and Bs - anything.
> 
> See the Expert doc - there's an example for this sort of thing.
> 
> -W
> 
> On 03/10/2012, gboro54 <

> gboro54@

> > wrote:
>> We are using expert and fusion to monitor connection events in our
>> system.
>> We
>> would like to know the most efficient way to know that X number pair of
>> events have happened in a certain example(i.e eventA and eventB occurred
>> 4
>> times each in the 5 seconds). What is the most efficient way to do this? 
>> I
>> don't believe an accumulate would allow a combination of objects but I
>> may
>> be wrong. Perhaps a live query invoked by a rule?
>>
>>
>>
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