[rules-users] window:length with variables as constraints not working correctly

[Davide Sottara]

Unfortunately Drools does not support "join" constraints on (length) windows. 
So, accountNumber == "123" is checked BEFORE counting the Events in the
window,
while accountNumber == $acc.number is checked AFTER the window has filtered
the last
 - 5 in your case - events. I know that this is confusing, but I will make
sure that a feature
request is opened. In any case, I don't think that this behaviour will ever
be backported
to 5.3.x..





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