[rules-users] how to retract all documents created in the following scenario

[Wolfgang Laun]

rule "createError"
when
   not Error()
   emptyDoc: Document( field1== null || == (""), field2 == null || == ("")  )
then
   Error fact0 = new Error();
   fact0.setErrorCode( "code1" );
   insert(fact0);
end

rule "retractBadDocs"
when
   Error()
   $doc: Document()
then
   retract( $doc );
end

-W


On 02/02/2012, vadlam <sreeram.vadlamudi at wellsfargo.com> wrote:
> Hi All,
>
> we have a scenario whereby, several documents are created as part of the
> ruleflow. at the end of the ruleflow, if any of the fields in the document
> is empty or null, we would like to create a error (only one error) and
> retract all the documents so far.
>
> rule "createError"
> 	    ruleflow-group "mrHardErrors"
> 	    no-loop true
> 	    dialect "mvel"
>
> 	    when
>
>
> emptyDoc : Document( field1== null || == ( "" ) , field2 == null || == ( ""
> )  )
> 	        doc : Document( )
> 	    then
>
> 	        Error fact0 = new Error();
> 	        fact0.setErrorCode( "code1" );
> 	        insert(fact0 );
> 	        retract( emptyDoc);
>
> end
>
> I see that error is created more than once ( as many as matching documents )
>
> How do we ensure that all documents are retracted and also the error is
> created only once ?
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/how-to-retract-all-documents-created-in-the-following-scenario-tp3711226p3711226.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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