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  1. Drools
  2. DROOLS-51

Cannot use null as value for a positional constraint

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 5.5.1.Final, 6.0.0.Alpha9
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      The following DRL generates an infinite loop, while it works correctly if you replace the positional constraint with a normal one as in the commented pattern.

      declare Outer
end

declare Inner
  outer : Outer
end

rule "Init"
when
then
  insert( new Inner( null ) );
  insert( new Outer( ) );
end

rule "Bind"
when
  $o : Outer(  )
  $i : Inner( null ; )    // $i : Inner( outer == null )
then
  modify ( $i ) { setOuter( $o ); }
end

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