Hello, we are using Drools Expert. We have a rule which should fire if at least one of the object attributes are not empty. This is my pattern: ( TblVersichKlinik(versicherung != null, versicherung != " ") or (TblVersichKlinik(zusatzversicherung !=null, zusatzversicherung != " ")) ) The problem is the following: when BOTH conditions are fulfilled, the rule fires twice, so I get redundant results in my final result, and this is not wanted. Is there a way to solve the problem? Any ideas ? Thanks a lot and many regards! skasab2s -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Problems-with-OR-tp90... Sent from the Drools - User mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

There is a solution that is much simpler: when TblVersichKlinik( ( versicherung != null && versicherung != " " ) || (zusatzversicherung !=null && zusatzversicherung != " ") ) then ... end []s Edson 2010/6/18 skasab2s <skasab2s(a)smail.inf.fh-brs.de&gt; > > Hi guys, > > many thanks for your replies! Sorry, my solution was other: > > declare EnsuranceExists > value: boolean > end > > // ------------ Initialisation Rule(s). --------------- > rule "Always insert initial $ensuranceExists" salience 100 > when > > then > EnsuranceExists $ensuranceExists = new EnsuranceExists(); > $ensuranceExists.setValue(false); > insert($ensuranceExists); > end > > > rule "Check ensurance" salience 95 > when > (( TblVersichKlinik( > versicherung != null, versicherung != " ")) > or > (TblVersichKlinik( > zusatzversicherung !=null, zusatzversicherung != " ")) ) > $ensuranceExists : EnsuranceExists(value == false) > then > $EnsuranceExists.setValue(true); > update($ensuranceExists); > end > > // End result > rule "All data is valid" salience 90 > when > ... > EnsuranceExists (value == true) > ... > > then > This way, the rule "Check ensurance" can be fired many times, without > affecting the end result. > > Once again thanks for your advices anyway. > > Many regards, > > skasab2s. > > > -- > View this message in context: > http://drools-java-rules-engine.46999.n3.nabble.com/Problems-with-OR-tp90... > Sent from the Drools - User mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users