[rules-users] What's wrong with this rule

[赵侃侃]

I haven't tested this rule, but what about the case that property index
would have arbitrary number of possible values?

2010/10/27 Wolfgang Laun <wolfgang.laun at gmail.com>

> Omitting the Entry  Points:
>
> rule "B-0-1-not OK"
> when
>    $b : EventB( $index: index )
>    not ( PatternConsumer( id == "B01", events contains $b ) )
>    not ( EventB( index == (1 - $index), this after[0s,2m] $b ) )
> then
>    System.out.println( "B:" + $index + ", but no B:" + (1-$index) );
> end
>
> rule "B-0-1"
> when
>    $b1 : EventB( $index: index )
>    $b2 : EventB( index == (1 - $index), this after[0s,2m] $b1 )
> then
>    insert( new PatternConsumer( "B01", $b1, $b2 ) );
>    System.out.println( "B:" + $index + "+B:" + (1-$index) );
> end
>
> -W
>
> 2010/10/27 赵侃侃 <kevin223 at gmail.com>:
> > Hello,
> > With the help from the community I managed to get my first rule working,
> and
> > I'm trying to write my second rule on my own but it just doesn't seem to
> > work correctly.
> > Here is the scenario, what I want is to identify a pattern that there's
> no
> > EventB coming in within 2 minutes with a particular index value.
> > For example, EventB would have a property named index and assume the
> value
> > of index would be either 0 or 1.
> > Before firing the rules, I would manually insert facts of possibleIndex
> with
> > value 0 and 1 into the workingMemory.
> > Within 2 minutes, if there only comes one EventB with index valued 0 then
> > the system should report no EventB coming in with index value 1 in last 2
> > minutes.
> > Vice versa, in the case of only coming one EventB with index valued 1
> then
> > the system should report no EventB coming in with index value 0 in last 2
> > minutes.
> > If within 2 minutes, there comes 2 EventB with both value 0 and 1 then
> > nothing should report.
> > Here is what I wrote, but it doesn't seem to work correctly.
> > I used a timer to fire this rule every 10 seconds because I don't think
> the
> > rule would run automatically if I don't add that. (not too sure though)
> > rule "no B in 2 minutes"
> > timer (0 10s)
> > when
> > possibleIndex( $index : index ) from entry-point "Event stream"
> > $p : PatternConsumer ( name == 'no B' && index == $index )
> > not ( EventB( index == $index && this after[0ms,2m] $p) over
> window:time(2m)
> > from entry-point "Event stream" )
> > then
> > PatternConsumer pc = new PatternConsumer( "no B", $index );
> > insert(pc);
> > System.out.println("no B in 2 minutes " + $index);
> > end
> > Best Regards,
> > Kevin Zhao
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
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