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

System.out.println( "Test no B" ); session = kBase.newStatefulKnowledgeSession( config, null ); clock = session.getSessionClock(); session.insert( new Player( 1 ) ); clock.advanceTime( 3*60, TimeUnit.SECONDS ); session.fireAllRules(); session.dispose(); The rule fires with this test, (kBase in STREAM mode). -W 2010/10/29 赵侃侃 <kevin223(a)gmail.com&gt; The "no B:x for 2 minutes" will not fire if nothing comes in even after > 2minutes. e.g. if no characters get killed then no events will come in. > If I add a timer to this rule, say like timer (2m 1s), then the rule will > fire every second after 2 minutes. > > Best Regards, > Kevin > > 2010/10/29 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; > >> OK; your original version somehow put me off the right track. >> This rule will fire as soon as there is no B:n according to the >> Player index for 2 minutes. >> >> rule "no B:x for 2 minutes" >> when >> $b : Player( $index: index ) >> not ( EventB( index == $index) over window:time( 2m ) ) >> then >> System.out.println( "no B:" + $index + " in last 2 minutes" ); >> end >> >> This would fire whenever there's no B at all for 2 minutes: >> >> rule "no B for 2 minutes" >> when >> not ( EventB() over window:time( 2m ) ) >> then >> System.out.println( "no B:" + $index + " in last 2 minutes" ); >> end >> >> >> >> 2010/10/28 赵侃侃 <kevin223(a)gmail.com&gt; >> >>> My last mail should actually read: >>> >>> A player may have multiple characters and the rule should fire when * >>> ALL* of its characters live longer than 2 minutes. that's why >>> "characters" do not have a unique identification and there isn't any event >>> representing a character birth. >>> >>> Best Regards, >>> Kevin Zhao >>> >>> 在 2010年10月28日 下午9:50，赵侃侃 <kevin223(a)gmail.xn--com&gt;:-0s6m5392c >>> >>> A player may have multiple characters and the rule should fire when any >>>> of its characters live longer than 2 minutes. that's why "characters" do >>>> not have a unique identification and there isn't any event representing a >>>> character birth. >>>> >>>> Best Regards, >>>> Kevin Zhao >>>> >>>> 2010/10/28 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; >>>> >>>>> If EventB( index == 3 ) signifies that the "character" owned by player >>>>> 3 has been killed: what is the event that this character has been born? Life >>>>> is the time between birth and death; these two are well-defined (well, >>>>> mostly) events, and they ought to be represented by clean-cut events in any >>>>> application. Then it's no problem to write rules firing when a "character" >>>>> lives longer or shorter than any time. Also, "characters" may have to have a >>>>> unique identification beyond their player-owner. >>>>> >>>>> If you are constantly shifting your specs, we won't be getting any >>>>> closer to a solution, though. >>>>> >>>>> >>>>> -W >>>>> >>>>> >>>>> 2010/10/28 赵侃侃 <kevin223(a)gmail.com&gt; >>>>> >>>>>> To be honest, I don't quite understand the rules you wrote. Let me >>>>>> explain this a little bit with a real world scenario. >>>>>> Assume this is an on-line game that EventB indicates a 'kill' event >>>>>> that a player is losing its character who might be killed by some other >>>>>> player. >>>>>> The property index points to the player who owns this character. What >>>>>> I'm looking for here is to find out when a player's character survives in 2 >>>>>> minutes. The number of players in a game is at least 2 but can be up to any >>>>>> number. >>>>>> >>>>>> Best Regards, >>>>>> Kevin Zhao >>>>>> >>>>>> 2010/10/28 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; >>>>>> >>>>>>> >>>>>>> >>>>>>> 2010/10/28 赵侃侃 <kevin223(a)gmail.com&gt; >>>>>>> >>>>>>>> Hello Wolfgang, >>>>>>>> >>>>>>>> Index is just like the index in an array. the value can be any from >>>>>>>> 0 to the array length. >>>>>>>> for the previous example, the length is 1 so index can be either 0 >>>>>>>> or 1. but in the real case, the length can be an arbitrary number. >>>>>>>> >>>>>>>> another question, there are 2 rules here, do both of them have to >>>>>>>> be applied? >>>>>>>> >>>>>>> >>>>>>> One creates and inserts the PatternConsumer which blocks repeated >>>>>>> usage of the pair of EventB facts that have been successfully paired. >>>>>>> Otherwise a sequence EventB:0, EventB:1, EventB:2 would fire 2 times. >>>>>>> >>>>>>> If the positive condition is more complex, e.g., you need *all* >>>>>>> index values 0,...,L-1 within 2m, then other conditions will be required >>>>>>> (and that's what I meant with "more precisesly"). If any pair a,b from >>>>>>> [0..L-1] will do, then the modified version (!=) should be OK. >>>>>>> >>>>>>> -W >>>>>>> >>>>>>> >>>>>>> >>>>>>>> >>>>>>>> Best Regards, >>>>>>>> Kevin Zhao >>>>>>>> >>>>>>>> 2010/10/28 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt; >>>>>>>> >>>>>>>> Kindly state your requirements precisely. >>>>>>>>> >>>>>>>>> Perhaps >>>>>>>>> not ( EventB ( index != $index,... ) >>>>>>>>> is what you need. >>>>>>>>> -W >>>>>>>>> >>>>>>>>> 2010/10/28 赵侃侃 <kevin223(a)gmail.com&gt; >>>>>>>>> >>>>>>>>> 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(a)gmail.com&gt; >>>>>>>>>> >>>>>>>>>>> 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(a)gmail.com&gt;: >>>>>>>>>>> > 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(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 >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> 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 >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> 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 >>>>>>> >>>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> 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 >>>>> >>>>> >>>> >>> >>> _______________________________________________ >>> 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 >> >> > > _______________________________________________ > 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