[rules-users] how to retract all documents created in the following scenario
Wolfgang Laun
wolfgang.laun at gmail.com
Fri Feb 3 03:43:04 EST 2012
Here I was too hasty taking the Document pattern as granted. The
createError only fires if field1 *and* field2 are null/"", but the
initial statement says "...if *any* field is null...".
Therefore, you must use
when
not Error()
( Document( field1== null || == ("") )
or
Document( field2 == null || == ("") ) )
then
-W
On 03/02/2012, Wolfgang Laun <wolfgang.laun at gmail.com> wrote:
> 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.
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>
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