Edson,

Actually, I am glad it caught it, because that was not my intent at all.  I was a global search and replace issue on my part.

If you added in support for these operations, I still think a warning would be in order because that may not be what you intended,

I am considering the move to 4.0.x series, but I have hard deadline and am being risk averse at this point.

Ron

On 5/24/07, Edson Tirelli <tirelli@post.com> wrote:

    Ronald,

    I see now. Version 3.0.x still used integer codes for operators and that is the reason the error message is saying operator '50'.
    So, the problem is you are trying to use >= (operator 50) with a string attribute: 

    public static final int EQUAL            = 1;
    public static final int NOT_EQUAL        = 10;
    public static final int LESS             = 20;
    public static final int LESS_OR_EQUAL    = 30;


    public static final int GREATER          = 40;
    public static final int GREATER_OR_EQUAL = 50;
    public static final int CONTAINS         = 60;
    public static final int MATCHES          = 70;

    public static final int EXCLUDES         = 80;

      Version 4.0 already uses type safe enums for operators, so message will be better.

      Back to your problem, I guess we should add support for comparisons between strings using the java lexicographic order. We don't do it as of today.

      What you can do as a work around is to use a predicate:

MyFact( $s: strAttr -> ( $s.compareTo( $otherValue ) >= 0 ) )

       May I ask you please to open a JIRA with a feature request to support comparison for string objects?

       Thank you,
          Edson

2007/5/24, Ronald R. DiFrango < ron.difrango@gmail.com>:
Edson,

I am using 3.0.5 of the IDE which is the latest version I could find on the update site.

I have asked when the newer version might be posted, but I never did hear an answer back.

Ron


On 5/23/07, Edson Tirelli <tirelli@post.com> wrote:
   Ronald,

   When you write an expression for a String attribute like:

Person( name > "Edson" )

   It should raise an exception saying:

Operator '>' does not exists for StringEvaluator.

   Although, he is saying Operator '50'?!?!

   What version of drools are you using?

   []s
   Edson




2007/5/23, Ronald R. DiFrango < ron.difrango@gmail.com>:
Anyone ever seen this error in the IDE:

Severity and Description    Path    Resource    Location    Creation Time    Id
Operator '50' does not exist for StringEvaluator    RtvDecisionEngine/src/rules/com/circuitcity/rtvcrms/rules    rtv.drl    Unknown    1179954317638    29080

And if so what do you do about it?  My rules file is just under 1000 lines [and growing] and shows no other errors.

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--
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com




--
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com

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