[rules-users] Guvnor rule with a not and an ==

[Michael Anstis]

I don't believe it is possible to negate rules in Guvnor using the guided
editor. Please raise a JIRA for an enhancement.

AFAIK the only work around would be to specify "Free form DRL" when
constructing the pattern.

With kind regards,

Mike

On 29 April 2011 21:46, Dean Whisnant <dean at basys.com> wrote:

>
> Hi,
>
> I have a rule where I want to check if an object doesn't exist or it exists
> and a field in it is null or a field in it is D.
>
> Here's .drl code that works
>
> rule "test does not exist is null or is D"
>        when
>                (not CLM_DET_LOAD_PendCode() ||
>                         CLM_DET_LOAD_PendCode(pendCode_29== (null)) ||
>                        CLM_DET_LOAD_PendCode(pendCode_29== "D")
>                )
>        then
>                System.out.println("CLM_DET_LOAD_PENDCOE does not exist, is
> null, or is D");
> End
>
> Normally in Guvnor to do an Or, I choose "Any of the following are true..."
> from the 'Add a condition to the rule...' dialogue.  But when I choose this
> and then try to do the "not" logic, there is no choice for 'not'.  I can get
> the other two conditions in just fine.  Short of putting freeform DRL
> language in there, do you have any suggestions?  Am I missing an option in
> guvnor?
>
> Thanks
>
> Dean
>
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