On 05/01/2014 09:46 PM, Wolfgang Laun wrote: > A window:length is filled depending on the constraints but independent > of how old the participating facts are. Currently only ALPHA constraints determine which facts are filtered by a length window. There is a JIRA to include beta constraints, but it has not yet been discussed. So yes, if none of your facts had value > 102.352, it is possible for (26) to be still in the window when (146) comes in.
Davide > > What you want to achieve can be done without windows: > > t2_1 : Tick( value < 102.352 ) > t1_1 : Tick( this before t2_1 , value >= 102.352 ) > not Tick( this before t2_1 && after t1_1 ) > > The last pattern ascertains that the preceding pair of facts is > adjacent. (The three timestamps should be different.) > > You can also use rules based on an auxiliary fact maintaining state: > While value < 102.352, state is set to "below"; as soon as a > fact with value >= 102.352 matches state == "below", the > threshold is passed and state is set to "above"... > > -W > > > On 02/05/2014, Demian Calcaprina <calcacue...@gmail.com> wrote: >> Hi Guys, I have one question about how lenght windows will work. >> >> I have a rule like this. Basically, it is a "crosses" function, where the >> value of my object crosses a value. >> >> rule "mytest" >> dialect "mvel" >> when >> t2_1 : Tick( value < 102.352 ) over window:length (1) >> t1_1 : Tick( this before t2_1 , value >= 102.352 ) over window:length (2) >> then >> //DO SOMETHING >> end >> >> 23:51:32,150 INFO [org.drools.core.audit.WorkingMemoryConsoleLogger] >> (Camel (camel-1) thread #2 - JmsConsumer[]) ACTIVATION FIRED rule:mytest >> activationId:berarrr_1 [0, 27, 26] declarations: t2_1=Tick [value=102.351, >> tickTime=Fri May 02 05:51:31 ART 2014](27); t1_1=Tick [value=102.352, >> tickTime=Fri May 02 05:51:12 ART 2014](26) >> >> 23:53:30,560 INFO [org.drools.core.audit.WorkingMemoryConsoleLogger] >> (Camel (camel-1) thread #2 - JmsConsumer[]) ACTIVATION CREATED rule:mytest >> activationId:berarrr_1 [0, 146, 26] declarations: t2_1=Tick [value=102.349, >> tickTime=Fri May 02 05:53:30 ART 2014](146); t1_1=Tick [value=102.352, >> tickTime=Fri May 02 05:51:12 ART 2014](26) >> >> If you see, the first activation, the >> window:length(1), matched the object 27 >> window:length(2), matched the object 26 >> >> Then, after 2 minutes and some Ticks insertes in the WM >> window:length(1), matched the object 146 >> but window:length(2), still matched the object 26 >> >> I would expect, that, as object 26 was the first one to be inserted, then >> it is outside the window:length(2). >> >> Is my understanding correct? Am I making something wrong? I am using Drools >> 6. >> >> Thanks! >> >> Demian >> > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
