Hi,
I've following event declarations and rule:

declare Event
    @role(event)
    @timestamp(datetime)
    datetime : Date
    name : String
end

declare Contest
    @role(event)
    @timestamp (startTimestamp)
    startTimestamp : Date
    endTimestamp : Date
end

rule "Contest"
no-loop
when
    $e : Event(name == "event1")
    $contest : Contest(this includes $e)
then
    System.out.println("rule Contest fired");
end

The timestamps with Event and Contest objects are set as follows (before insert in state-full session):

           // for Contest object
           Calendar c = Calendar.getInstance();
            c.set(2011, 7, 1);
            contestType.set(contest, "startTimestamp", new Date(c.getTimeInMillis()));
            c.set(2011, 7, 31);
            contestType.set(contest, "endTimestamp", new Date(c.getTimeInMillis()));

            // for Event object
             c.set(2011, 7, 3);
       eventType.set(event, "datetime", new Date(c.getTimeInMillis()));

The condition "this includes $e" in LHS doesn't get evaluated to true and RHS doesn't get executed.

If I change it to "$contest.startTimestamp before $e, $contest.endTimestamp after $e" which has the same meaning then it works fine.
Please help in resolving the issue.

Thanks & Regards,
Neelesh