Hello, the class ContactQueueDetail contains class ContactCallDetailId. ContactQueueDetail cqd I have asserted cqd to the WorkingMemory. It contains ContactCallDetailId id; On the LHS I need the Timestamp t=id.getStartDateTime(); I have not found the correct Syntax for this, yet. My rule looks like this: *rule* "ContactQueueDetail" *when* $cqd:ContactQueueDetail($disp:disposition==1,$id:id.startDateTime) $h: CallsPerHour(hour==$id.getHour()) *then* .. *end* kind regards Martin ------------------------------------------------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users