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  1. Drools
  2. DROOLS-5548

Model compiler cannot generate declaration from a function call

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Details

    • Bug
    • Resolution: Done
    • Major
    • None
    • 7.31.0.Final, 7.32.0.Final, 7.33.0.Final, 7.34.0.Final, 7.35.0.Final, 7.36.0.Final, 7.37.0.Final, 7.38.0.Final, 7.39.0.Final, 7.40.0.Final
    • executable model
    • None
    • 2020 Week 31-33 (from Jul 27)
    • Hide

      Using the example rule above, building it, org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile will throw the error described above.

      Show
      Using the example rule above, building it,  org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile will throw the error described above.
    • NEW
    • NEW

    Description

      Given the example rule below (based on the drools example rule)

       

      global java.util.Set controlSet;

declare A
 x: String
end

declare B
 a: A
end

function String dummyFunction(B b) {
 return "test";
}

rule "will execute per each Measurement having ID color"
no-loop
when
 Measurement( id == "color", $colorVal : val )
 $b: B()
 $val: String() from dummyFunction($b.a)
then
 controlSet.add($colorVal);
end

       

       

      When compiling the rule with kie-maven-plugin it fails with :

      ...target/generated-sources/drools-model-compiler/main/java/rules/Rules5937a2896da74f01bfa36d294bcf0858RuleMethods0.java:[32,107] cannot find symbol
[ERROR] symbol: variable $b
[ERROR] location: class rules.Rules5937a2896da74f01bfa36d294bcf0858RuleMethods0

      It transpiles and compiles fine with: 

      $val: String() from dummyFunction($b)

       

      This can probably be reproduced on all version. 

      It works when the rules are not pre-compiled.

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          duplicates

          Bug - A problem that impairs or prevents the functions of the product. DROOLS-5549 Drools model compilation fails when using object builders within method calls

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved
          relates to

          Bug - A problem that impairs or prevents the functions of the product. DROOLS-5542 org.apache.maven.plugins:maven-compiler-plugin fails on the generated model

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

          Activity

            People

              lmolteni@redhat.com Luca Molteni
              cchiru Ciprian Chiru (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: