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 <mar...@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? > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Get-previous-fact-from-working-memory-tp3399064p3400371.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users