[rules-users] Help with my understanding

[Andrew Robinson]

How about this:

rule "Valid Format"
when
  $status : RuleResult()
  Identifier(value matches "^([0-9]{9})$")
then
  $status.addErrorMessage("Identifier does not match required format");
end

http://downloads.jboss.com/drools/docs/4.0.3.15993.GA/html_single/index.html#d0e3318

On Dec 19, 2007 9:48 AM,  <John.Dubchak at wellsfargo.com> wrote:
>
>
>
>
> Hi,
>
>
>
> We are using Jboss-rules 3.0.5 and I have written a simple rule:
>
>
>
> rule "Valid Format"
>
>
>
>        when
>
>               $status : RuleResult()
>
>               $id : Identifier()
>
>
>
>               eval ($id.getValue() != null)
>
>               eval (!$id.getValue().matches("^([0-9]{9})$"))
>
>        then
>
>               $status.addErrorMessage("Identifier does not match required
> format");
>
>
>
> end
>
>
>
> In my unit test, I create an instance of the Identifier object and do not
> set the Value, therefore it is null by default.  I have an earlier rule that
> checks for this null value and places an error message in the result object
> appropriately.  I would expect this error to fail and not see this error
> message in the result, but instead see the missing value error message.  The
> problem is that I see both.
>
>
>
> It appears as though the eval null check is failing.  Am I misunderstanding
> how this rule should work?
>
>
>
> Any insight and/or answers are really appreciated.
>
>
>
> Thanks,
>  John
>
>
>
>
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