Any idea? Please... 2010/5/4 Antonio Neto <antoniosouzaneto(a)gmail.com&gt; > > Hi all, > > I don't know exactly why I have a problem in my "exists" function. I've > tried many different ways, but it does not work. Anybody could help me, > please? > > I have the following rules: > > rule "diff" > when >     $var1: EReference(name == "employee") >     $var2: EClass(name == "Company", EAllReferences contains $var1) >     not (exists( EPackage(EClassifiers contains $var2 ) )) > then >     insertLogical(new IntConstraintOccurrence("diff", 10)); > end > > rule "ClassesNotReferenced" >     when >         $q1 : EClass(); >         $q2 : EPackage(EClassifiers contains $q1); >         not( exists ( EReference(EType == $q1) )); >     then >         insertLogical(new IntConstraintOccurrence("ClassesNotReferenced", > 1, $q1)); > end > > > and in my facts (and my EPackage) I have 4 instances of EClass "Company" > with a EReference "employee", and another EClass "Person".  I still have a > "move" that removes EClasses in my Drools Solver. > > I need to have only one classe "Company" after processing. But it removes > only the EClass "Person", when it was supposed to remove one EClass "Person" > and 3 ECLasses "Company". Leaving one EClass "Company" in the end. > > The problem is:  when Drools tries to remove a EClass "Person" it thinks > that  the EClass "Company" does not exists. But in fact there are 3 others. > > Any clue about it, please ? > > Thanks > > Bests regards > > Antonio > > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Any idea? Please... 2010/5/4 Antonio Neto <antoniosouzaneto(a)gmail.com&gt; > Hi all, > > I don't know exactly why I have a problem in my "exists" function. I've > tried many different ways, but it does not work. Anybody could help me, > please? > > > I have the following rules: > > *rule "diff" > when > $var1: EReference(name == "employee") > $var2: EClass(name == "Company", EAllReferences contains $var1) > not (exists( EPackage(EClassifiers contains $var2 ) )) > then > insertLogical(new IntConstraintOccurrence("diff", 10)); > end > > rule "ClassesNotReferenced" > when > $q1 : EClass(); > $q2 : EPackage(EClassifiers contains $q1); > not( exists ( EReference(EType == $q1) )); > then > insertLogical(new IntConstraintOccurrence("ClassesNotReferenced", > 1, $q1)); > end* > > > and in my facts (and my EPackage) I have 4 instances of EClass "Company" > with a EReference "employee", and another EClass "Person". I still have a > "move" that removes EClasses in my Drools Solver. > > I need to have only one classe "Company" after processing. But it removes > only the EClass "Person", when it was supposed to remove one EClass "Person" > and 3 ECLasses "Company". Leaving one EClass "Company" in the end. > > The problem is: when Drools tries to remove a EClass "Person" it thinks > that the EClass "Company" does not exists. But in fact there are 3 others. > > Any clue about it, please ? > > Thanks > > Bests regards > > Antonio > > >

Hi, Thank you very much for all replies. I've tried also with not ( EPackage(...)), but the result is the same. I think that I remove the EClass from the facts in my solution, but they continue in my workingMemory. How I can see the facts of the workingMemory object (and how remove it)? Thanks Best regards Antonio 2010/5/5 <fgadrat(a)genigraph.fr&gt; > Hi Antonio, > Documentation states that the complement to "not" is "exists", whereas > "not" keyword is used to match the absence of a fact (in Working Memory), > and "exists" keyword is used to test the existence of one or more facts (in > Working memory). > > So if you want to test that a fact is not in working memory, then you > should use the > not(MyClass()) pattern. > > Hope this helps, > Francois. > > Antonio Neto <antoniosouzaneto(a)gmail.com&gt; a écrit : > > > > Any idea? Please... > > > > 2010/5/4 Antonio Neto <antoniosouzaneto(a)gmail.com&gt; > > > >> Hi all, > >> > >> I don't know exactly why I have a problem in my "exists" function. I've > >> tried many different ways, but it does not work. Anybody could help me, > >> please? > >> > >> > >> I have the following rules: > >> > >> *rule "diff" > >> when > >> $var1: EReference(name == "employee") > >> $var2: EClass(name == "Company", EAllReferences contains $var1) > >> not (exists( EPackage(EClassifiers contains $var2 ) )) > >> then > >> insertLogical(new IntConstraintOccurrence("diff", 10)); > >> end > >> > >> rule "ClassesNotReferenced" > >> when > >> $q1 : EClass(); > >> $q2 : EPackage(EClassifiers contains $q1); > >> not( exists ( EReference(EType == $q1) )); > >> then > >> insertLogical(new > IntConstraintOccurrence("ClassesNotReferenced", > >> 1, $q1)); > >> end* > >> > >> > >> and in my facts (and my EPackage) I have 4 instances of EClass > "Company" > >> with a EReference "employee", and another EClass "Person". I still > have a > >> "move" that removes EClasses in my Drools Solver. > >> > >> I need to have only one classe "Company" after processing. But it > removes > >> only the EClass "Person", when it was supposed to remove one EClass > "Person" > >> and 3 ECLasses "Company". Leaving one EClass "Company" in the end. > >> > >> The problem is: when Drools tries to remove a EClass "Person" it > thinks > >> that the EClass "Company" does not exists. But in fact there are 3 > others. > >> > >> Any clue about it, please ? > >> > >> Thanks > >> > >> Bests regards > >> > >> Antonio > >> > >> > >> > > > > _______________________________________________ > 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

Oi Miguel, when I try this in the "doMove" method using the "workingMemory" instead of "ksession" I got this error Exception in thread "main" java.lang.UnsupportedOperationException: this is implementedby StatefulKnowledgeImpl at org.drools.reteoo.ReteooWorkingMemory.getFactHandles (ReteooWorkingMemory.java:363) ... ... Any idea? Obrigado Antonio 2010/5/6 miguel machado <mls.machado(a)gmail.com&gt; Olá Antonio, > > // retract all of it just in case > for (Object fact : ksession.getFactHandles()) { > ksession.retract((FactHandle) fact); > } > > Hope this helps. > _ miguel > > > > 2010/5/5 Antonio Neto <antoniosouzaneto(a)gmail.com&gt; > > Hi, >> >> Thank you very much for all replies. >> >> I've tried also with not ( EPackage(...)), but the result is the same. >> >> I think that I remove the EClass from the facts in my solution, but they >> continue in my workingMemory. >> >> How I can see the facts of the workingMemory object (and how remove it)? >> >> Thanks >> >> Best regards >> >> Antonio >> >> 2010/5/5 <fgadrat(a)genigraph.fr&gt; >> >>> Hi Antonio, >>> Documentation states that the complement to "not" is "exists", whereas >>> "not" keyword is used to match the absence of a fact (in Working Memory), >>> and "exists" keyword is used to test the existence of one or more facts (in >>> Working memory). >>> >>> So if you want to test that a fact is not in working memory, then you >>> should use the >>> not(MyClass()) pattern. >>> >>> Hope this helps, >>> Francois. >>> >>> Antonio Neto <antoniosouzaneto(a)gmail.com&gt; a écrit : >>> >>> >>> > Any idea? Please... >>> > >>> > 2010/5/4 Antonio Neto <antoniosouzaneto(a)gmail.com&gt; >>> > >>> >> Hi all, >>> >> >>> >> I don't know exactly why I have a problem in my "exists" function. >>> I've >>> >> tried many different ways, but it does not work. Anybody could help >>> me, >>> >> please? >>> >> >>> >> >>> >> I have the following rules: >>> >> >>> >> *rule "diff" >>> >> when >>> >> $var1: EReference(name == "employee") >>> >> $var2: EClass(name == "Company", EAllReferences contains $var1) >>> >> not (exists( EPackage(EClassifiers contains $var2 ) )) >>> >> then >>> >> insertLogical(new IntConstraintOccurrence("diff", 10)); >>> >> end >>> >> >>> >> rule "ClassesNotReferenced" >>> >> when >>> >> $q1 : EClass(); >>> >> $q2 : EPackage(EClassifiers contains $q1); >>> >> not( exists ( EReference(EType == $q1) )); >>> >> then >>> >> insertLogical(new >>> IntConstraintOccurrence("ClassesNotReferenced", >>> >> 1, $q1)); >>> >> end* >>> >> >>> >> >>> >> and in my facts (and my EPackage) I have 4 instances of EClass >>> "Company" >>> >> with a EReference "employee", and another EClass "Person". I still >>> have a >>> >> "move" that removes EClasses in my Drools Solver. >>> >> >>> >> I need to have only one classe "Company" after processing. But it >>> removes >>> >> only the EClass "Person", when it was supposed to remove one EClass >>> "Person" >>> >> and 3 ECLasses "Company". Leaving one EClass "Company" in the end. >>> >> >>> >> The problem is: when Drools tries to remove a EClass "Person" it >>> thinks >>> >> that the EClass "Company" does not exists. But in fact there are 3 >>> others. >>> >> >>> >> Any clue about it, please ? >>> >> >>> >> Thanks >>> >> >>> >> Bests regards >>> >> >>> >> Antonio >>> >> >>> >> >>> >> >>> > >>> >>> _______________________________________________ >>> 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 >> >> > > > -- > "To understand what is recursion you must first understand recursion" > > _______________________________________________ > 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