Hum, rigth ...
You want the last to be false ?

may be something like that (ignore the type first to get the last, then test it in a eval)
rule "check_agains_last"
when
     $e1 : Event (eventType == Event.EventType.EVENT1)
     $e2 : Event (this before $e1)
     not Event (this after $e2)
     eval ($e2.getEventType() == Event.EventType.EVENT2)
then
    ...
end

But to me this rule is too complex according to what it tells ... You should implement the chaining via the listener.



Le 06/10/2011 19:09, tungl a écrit : 
Thanks Vincent, but when I do it like this:


It's sufficient that EVENT2 has happened anywhere before EVENT1.

So EVENT1, EVENT2 => false, false
EVENT2, EVENT1 => false, true (that's right, but:)
EVENT2, EVENT1, EVENT1 => false, true, true (?)

How do I fix that?

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