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  1. Drools
  2. DROOLS-6410

Type coercion between BigDecimal and other arguments

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Details

    • Bug
    • Resolution: Done
    • Major
    • None
    • 7.52.0.Final
    • executable model
    • 2021 Week 22-24 (from May 31)
    • 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
    • Undefined
    • NEW
    • NEW

    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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          clones

          Bug - A problem that impairs or prevents the functions of the product. DROOLS-6287 Arithmetic operations with BigDecimal for a variable in constraint cause a compilation error in executable 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
          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. RHDM-1759 Arithmetic operations with BigDecimal returned by external function in constraint cause a compilation error in executable 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
              lmolteni@redhat.com Luca Molteni
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                Created:
                Updated:
                Resolved: