Re: [rules-users] Combination of conditions doesn't work

@FrankVhh Entry-points are used with CEP; you'll find details in the Fusion documetation. With kind regards, Mike On 7 April 2011 15:21, FrankVhh <frank.vanhoenshoven(a)agserv.eu> wrote: > Hi Sariman, > > The trick with "from entry-point", is quite unfamiliar to me. There might > be > some problem with that, but I cannot tell by looking at it. > > However, there are a few problems with the rules that you have printed > out > for us. > > 1) The way I understand it, they do not do what they should be doing. You > said you do NOT want an action when all sensors evaluate to true. In your > case, you are evaluateing whether all sensors are false. This is pretty > useless if you already have a rule which evaluates the existence of at > least > 1 "true" sensor. The way I would put this is like this: > > rule "Myrule" > when > #conditions > sensorEvent1: SensorEvent(booleanValue == true) > exists( SensorEvent(booleanValue == false) ) > then > #actions > end > > 2) There are some errors in your rule. No idea whether this is a > copy/paste > or a read/type, so I will just point them out. > - ";" is usually not needed in a LHS, I am not familiar with the from > entry-point syntax, but I assume it wouldn't be needed > - There is a ")" in excess in one of your conditions > > 3) I don't think it makes sense to put your rules as you did in the > second > example. Even if you are trying to examine whether those three sensors > are > false. > > On a personal note: what does from entry-point do? I must have overlooked > it > in the documentation. > > Regards, > Frank > > > sariman wrote: > > > > To keep it short, I have three sensors providing me some values every x > > seconds. I am running an algorithm over those values and getting at the > > end a single value for each sensor. Next I check if this value is > > greater/less than a threshold value and creating an object and setting > its > > booelan value to true/false. The last part looks like this: > > > > SensorEvent sensorEvent = new SensorEvent (); > > sensorEvent.setBoolean(booleanValue); > > sensorEvent.setSensorID(sensorID); > > > > I want to do some actions if one of the sensors has "true" and this > works. > > But I want no action if all sensors have "true". And this part doens't > > work. If I only check one of the sensors if it is "false" it is ok but > the > > combination doesn't work. It means this case seems naver to happen. No > > exception or error but no system print either. Here is the code snippet > > from my rules file: > > > > declare SensorEvent > > @role(event) > > end > > > > > > rule "All false" > > > > when > > #conditions > > sensorEvent1 : SensorEvent(sensorID == 1 , > booleanValue > == false) from > > entry-point "Default"; > > sensorEvent2 : SensorEvent(sensorID == 5 , > booleanValue > == false) ) from > > entry-point "Default"; > > sensorEvent3 : SensorEvent(sensorID == 6 , > booleanValue > == false) from > > entry-point "Default"; > > > > then > > #actions > > System.out.println(" All false!! -> "); > > > > end > > > > > > I run the engine in stream mode and every single value (or object) is > > being inserted after I receieved the value. I also tried this variant > but > > it didn't work either: > > > > rule "All false" > > > > when > > #conditions > > sensorEvent1 : SensorEvent(sensorID == 1 ) from > entry-point "Default"; > > sensorEvent2 : SensorEvent(sensorID == 5 ) from > entry-point "Default"; > > sensorEvent3 : SensorEvent(sensorID == 6 , > booleanValue > == false && > > sensorEvent1.booleanValue == false && sensorEvent2.booleanValue == > false)) > > from entry-point "Default"; > > > > then > > #actions > > System.out.println(" All false!! -> "); > > > > end > > > > Any suggestions? > > > > > -- > View this message in context: > http://drools-drools-expert-drools-fusion-guvnor-drools-planner.46999.n3.... > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users