Your test, Mark, is not the same example to which Wolfgang refers. You'll need to re-test with the DRL at the end of Wolfgang's email (which is what we've included in N&N for 5.2).
It's quite possible one of the ?'s is simply wrong... but I don't understand the subtleties of BC syntax yet. With kind regards, Mike On 24 June 2011 21:14, Mark Proctor <mproc...@codehaus.org> wrote: > ** > On 23/06/2011 13:20, Wolfgang Laun wrote: > > Still not resolved... > > I have added a test for all the possible insertion orders for that > particular use case and was not able to reproduce a problem: > > https://github.com/droolsjbpm/drools/commit/501f2196dcef754eed5a28b066b50665a5bc29a3 > > MArk > > On 22 June 2011 21:40, Mark Proctor <mproc...@codehaus.org> wrote: > >> heh, I made a mistake with the rule >> ( Location(z, y;) and ?hasFood(x, z;) ) >> should be >> ( Location(z, y;) and hasFood(x, z;) ) >> >> Otherwise it's not reactive, and then ordering matters. >> >> With that change I can do the insertions in any order and all is fine. >> >> > This works for the example you gave. But the one taken from the > "Introduction" still depends on the order the facts are inserted. Below is > the .drl, which does not need any pojos. Rule kickOff contains the order > that produces nothing to see and eat: > You are in the table > You can see [] > You can eat [] > > Insert Here after the others, and it works. > > -W > > import java.util.List > > declare Thing > thing : String @key > end > > declare Edible extends Thing > end > > declare Location extends Thing > location : String @key > end > > declare Here > place : String > end > > rule kickOff > when > then > System.out.println( "insert Here" ); > insert( new Here( "table" ) ); > System.out.println( "insert Edible" ); > insert( new Edible( "peach" ) ); > System.out.println( "insert Location" ); > insert( new Location( "peach", "table" ) ); > end > > # 2011-06-22 > query isContainedIn( String x, String y ) > Location(x, y;) > or > ( Location(z, y;) and /*?*/isContainedIn(x, z;) ) > end > > query whereFood( String x, String y ) > ( Location(x, y;) and > Edible(x;) ) > or > ( Location(z, y;) and /*?*/whereFood(x, z;) ) > end > > query look(String place, List things, List food) > Here(place;) > things := List() from accumulate( Location(thing, place;), > collectList( thing ) ) > food := List() from accumulate( /*?*/whereFood(thing, place;), > collectList( thing ) ) > end > > rule reactiveLook > when > Here( $place : place) > /*?*/look($place, $things; $food := food) > then > System.out.println( "You are in the " + $place); > System.out.println( " You can see " + $things ); > System.out.println( " You can eat " + $food ); > end > > > _______________________________________________ > rules-dev mailing list > rules-dev@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-dev > > > > _______________________________________________ > rules-dev mailing list > rules-dev@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev > >
_______________________________________________ rules-dev mailing list rules-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev
