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

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 : -- Vincent LEGENDRE /Consultant Sénior/ EURODECISION 9A rue de la Porte de Buc 78000 VERSAILLES Tél. : +33 (0)1 39 07 12 40 Direct : +33 (0)1 39 07 26 16 www.eurodecision.com EURODECISION <http://www.eurodecision.com/><http://www.eurodecision.com/>