[rules-users] Get previous fact from working memory.

[Wolfgang Laun]

This is handled by simply using the "before" temporal operator:
   $e1: Event1()
   $e2: Event2( this before $e1 )
-W

On 6 October 2011 19:09, tungl <martin at seafoid.org> wrote:
> 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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