CEP non-event programmer

Hello

I have a situation where I need to know all my upcoming events to the CEP. If no missing event found during the x window, I need to generate an exception report/alert.

For example, let's say that I expect 3 events (has, B and C) for a particular customer 123 (key). they arrive at times different (A1, B1, and C1) within the period of 4 hours. If I have not received event A and B, I can't treat the transaction until I get C. When I arrive at 4 hours, I need to generate an alert that the 123 customer has some problems because the event C is not come at all.

Is there a way to detect an event missing in PART? Maybe if I can create an internal timer event to query the cache for the event missing in a particular window. Is there such a timer event?

Thank you all,

Brandon

Hi Brandon,.

(1) regarding "Apparently not out matches in 10 sec itself, unless there is another event coming after", a heart-timeout pace has been configured on the channel "FilteredChannel" in the config file?


    FilteredChannel
    500000000  --- 500 millis

(2) regarding "missed some events as well and don't know closer to the window has expired", maybe your use case requires the clause of all MATCHES.

select
        T.customerId
from
         FilteredChannel MATCH_RECOGNIZE (
              MEASURES
                       A.customerId as customerId
              ALL MATCHES
              include timer events
              PATTERN(A B*)
              duration 10
              DEFINE
                       A as A.customerId > 0,
                       B as B.customerId != A.customerId
          ) as T

Tags: Fusion Middleware

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