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  1. Red Hat Decision Manager
  2. RHDM-1759

Arithmetic operations with BigDecimal returned by external function in constraint cause a compilation error in executable model

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Details

    • Bug
    • Resolution: Done
    • Major
    • 7.11.1.GA
    • 7.10.1.GA
    • BRE
    • False
    • False
    • CR1
    • Undefined
    • Hide

      Download attached reproducer and run it by

      mvn clean compile exec:exec -DgenerateModel=YES

      On the other hand, the following commands succeed.

      mvn clean compile exec:exec -DgenerateModel=NO
      Show
      Download attached reproducer and run it by mvn clean compile exec:exec -DgenerateModel=YES On the other hand, the following commands succeed. mvn clean compile exec:exec -DgenerateModel=NO
    • 2021 Week 22-24 (from May 31)

    Description

      When arithmetic operations is used with a field(s) of BigDecimal in LHS like the following, 

      dialect "mvel"

rule "rule_calc_with_external_function_lhs"
    when
        $fact : Fact( $bd : (extFunc(bd1) * 100 + 12))
    then
        System.out.println("*****[LHS] Fact.bd1 ("+ $fact.bd1+ ") * 100 + 12 is " + $bd);
end

rule "rule_calc_with_function_lhs"
    when
        $fact : Fact( $bd : (func(bd1) * 100 + 12))
    then
        System.out.println("*****[LHS] Fact.bd1 ("+ $fact.bd1+ " )* 100 + 12 is " + $bd);
end

      build of executable model fails with the error like:

      [ERROR] /path/to/reproducer_bd_arthmetic/target/generated-sources/drools-model-compiler/main/java/com/example/reproducer/P37/LambdaExtractor376B932463BA628A4DCB2BE232AC4A7B.java:[22,31] bad operand types for binary operator '+'
[ERROR]   first type:  java.math.BigDecimal
[ERROR]   second type: java.math.BigDecimal

[ERROR] /path/to/reproducer_bd_arthmetic/target/generated-sources/drools-model-compiler/main/java/com/example/reproducer/P15/LambdaExtractor15F9A9FEFE61705DE8D800222D699200.java:[22,31] bad operand types for binary operator '+'
[ERROR]   first type:  java.math.BigDecimal
[ERROR]   second type: int

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        Issue Links

          clones

          Bug - A problem that impairs or prevents the functions of the product. DROOLS-6410 Type coercion between BigDecimal and other arguments

          • 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
              rhn-support-hmiura Hiroko Miura
              Daniel Rosa Daniel Rosa
              Daniel Rosa Daniel Rosa
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              Dates

                Created:
                Updated:
                Resolved: