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  1. Drools
  2. DROOLS-2695

Beta node indexes don't support type coercion

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Details

    • Bug
    • Resolution: Done
    • Major
    • None
    • None
    • core engine
    • None
    • NEW
    • NEW

    Description

      When there is a type mismatch (e.g. String vs Integer) in a constraint, usually a type is coerced and a rule is fired.

      rule "R2"
    when
        $f : MyFactB( strData == 20 )
    then
        System.out.println( "R2 fired : $f = " + $f );
end

      As far as I investigate, in case of AlphaNode, MVEL does the coercion. Also AlphaNode hashing does the coercion (https://github.com/kiegroup/drools/blob/7.5.0.Final/drools-core/src/main/java/org/drools/core/reteoo/CompositeObjectSinkAdapter.java#L748).

      However, in case of JoinNode, it doesn't coerce so doesn't fire.

      rule "R1"
    when
        MyFactA( $i : intData )
        $f : MyFactB( strData == $i )
    then
        System.out.println( "R1 fired : $f = " + $f );
end

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        Issue Links

          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. RHDM-677 Beta node indexes don't support type coercion

          • 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

          Bug - A problem that impairs or prevents the functions of the product. RHPAM-1326 Beta node indexes don't support type coercion

          • 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 incorporated by

          Bug - A problem that impairs or prevents the functions of the product. RHDM-678 [GSS] (7.0.z) Beta node indexes don't support type coercion

          • 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

          Bug - A problem that impairs or prevents the functions of the product. RHPAM-1327 [GSS] (7.0.z) Beta node indexes don't support type coercion

          • 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

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              mfusco@redhat.com Mario Fusco
              mfusco@redhat.com Mario Fusco
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                Created:
                Updated:
                Resolved: