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  1. Red Hat Decision Manager
  2. RHDM-1967

executable model doesn't resolve bind variable in method call in LHS for property reactivity

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      $ unzip reproducer_method_in_constraint_1a.zip
$ cd reproducer_method_in_constraint_1a
$ ./run_mvn
=== generateModel=NO ===
   :
   :
***** start
***** Action of Rule 1
***** Action of Rule 2
***** end
   :
   :

=== generateModel=YES ===
   :
   :
***** start
***** Action of Rule 1
***** Action of Rule 2
***** Action of Rule 1
***** Action of Rule 2
***** Action of Rule 1
***** Action of Rule 2
***** Action of Rule 1
***** Action of Rule 2
***** Action of Rule 1
***** Action of Rule 2
***** end
   :
   :
      Show
      $ unzip reproducer_method_in_constraint_1a.zip $ cd reproducer_method_in_constraint_1a $ ./run_mvn === generateModel=NO === : : ***** start ***** Action of Rule 1 ***** Action of Rule 2 ***** end : : === generateModel=YES === : : ***** start ***** Action of Rule 1 ***** Action of Rule 2 ***** Action of Rule 1 ***** Action of Rule 2 ***** Action of Rule 1 ***** Action of Rule 2 ***** Action of Rule 1 ***** Action of Rule 2 ***** Action of Rule 1 ***** Action of Rule 2 ***** end : :
    • 2023 Week 12-14 (from Mar 20), 2023 Week 15-17 (from Apr 10), 2023 Week 18-20 (from May 1), 2023 Week 21-23 (from May 22), 2023 Week 24-26 (from Jun 12)

      When we execute rules like (*1) and Java code like (*2) below, more specifically, if the pattern (*1-1) has a method call in its constraint and a bound variable is passed to the method, an infinite loop between "Rule 1" and "Rule 2" occurs only in executable model.

      (*1) Example rules

      rule "Rule 1"
   when
       $fact1 : Fact1( $id1 : id == 1 )
       $fact2 : Fact2( $id2 : id == 2, convertToIdString($id2) == "id2" )    ..... (*1-1)
   then
       System.out.println("***** Action of " + drools.getRule().getName());

       modify($fact1) {
           value = $id2
       }
end

rule "Rule 2"
   when
       $fact1 : Fact1( $id1 : id == 1, value == 2 )
       $fact2 : Fact2( $id2 : id == 2 )
   then
       System.out.println("***** Action of " + drools.getRule().getName());

       modify($fact2) {
           value = $id1
       }
end

      (*2) Java code

      KieServices kServices = KieServices.Factory.get();
KieContainer kContainer = kServices.getKieClasspathContainer();
KieSession kSession = kContainer.newKieSession();

Fact1 fact1 = new Fact1();
fact1.setId(1);
fact1.setValue(1);
kSession.insert(fact1);

Fact2 fact2 = new Fact2();
fact2.setId(2);
fact1.setValue(2);
kSession.insert(fact2);

System.out.println("***** start");
kSession.fireAllRules(10);
System.out.println("***** end");

        1. reproducer_method_in_constraint_1a.zip
          14 kB

              rhn-support-tkobayas Toshiya Kobayashi
              rhn-support-myoshida Masato Yoshida
              Daniel Rosa Daniel Rosa
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                Created:
                Updated:
                Resolved: