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

[Wolfgang Laun]

Kindly state your requirements precisely.

Perhaps
   not ( EventB ( index != $index,... )
is what you need.
-W

2010/10/28 赵侃侃 <kevin223 at gmail.com>

> 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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>
>
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