Hi,
I've mentioned the test case I'm working on before. It's: If a certain
value exceeds a limit more than X times within Y minutes/hours, do
something.
~> Count = X , time = Y
During a talk with other developers it came up that by intuition the men
would have chosen a other approach than the women. We can not agree if
in Drools both approaches are the same in performance or if one is more
performant.
Male approach: If a new event with a limit violation is received,
check if within the last time Y already X events with limit
violations are contained in the knowledge base .
Female approach: If a new event with a limit violation is received,
check if the following events contain X events with limit violation.
This is limited to a monitoring time of /maximal /Y. (If there have
been X events registered, before the time Y is elapsed, the window
will be closed right away.)
In code with Y = 1h it would be:
Male:
// determine new event as $triggeringEvent
$otherEvent : Value (this before[0ms,1h] $triggeringEvent)
Female:
// determine event that opened the window as $triggeringEvent
$otherEvent : Value (this after[0ms,1h] $triggeringEvent)
This is just a extract so that that the comments are in fact
meaningless. The focus lies on _before_ and _after_.
Is one solution more efficient?
Thanks! :)
Tina
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