[rules-users] New in Drools: Updating facts retrieved in queries

Manuel Ortiz manuel.ortizramos at gmail.com
Fri Apr 29 05:15:16 EDT 2011 

Hi again Wolfgang:

Thank you for your quick answer. getFactHandle is the method I needed.

Concerning the second question, I'm using Drools 5.1.1 and yes, I imported
AlarmFact. Below you can find the relevant lines of the drl file, in which
the 'real name' of AlarmFact is MDSVHechoAlarma:

#created on: 14-mar-2011
package es.simcasva.alarmas.rules

#list any import classes here.

//......
import es.simcasva.alarmas.src.MDSVHechoAlarma;
//......



#declare any global variables here

//......

query "existe Alarma"  (MDSVHechoAlarma referencia)
    $alarma : MDSVHechoAlarma(   iIdAlarma == referencia.iIdAlarma,
                   strAgrup1 == referencia.strAgrup1,
                   strAgrup2 == referencia.strAgrup2,
                   strAgrup3 == referencia.strAgrup3,
                   strAgrup4 == referencia.strAgrup4,
                   strAgrup5 == referencia.strAgrup5,
                   strAgrup6 == referencia.strAgrup6,
                   strAgrup7 == referencia.strAgrup7,
                   strAgrup8 == referencia.strAgrup8,
                   strAgrup9 == referencia.strAgrup9,
                   strAgrup10 == referencia.strAgrup10
                   )

end

The reported errors are:

Description Resource Path Location Type
BuildError: Not possible to directly access the property 'iIdAlarma' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup1' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup10' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup2' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup3' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup4' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup5' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup6' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup7' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup8' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Not possible to directly access the property 'strAgrup9' of
declaration 'referencia' since it is not a pattern AlarmaReglasGenerales.drl
/aitor/es/simcasva/alarmas/rules Unknown Drools Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.iIdAlarma ]' for field 'iIdAlarma' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 185 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup1 ]' for field 'strAgrup1' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 186 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup10 ]' for field 'strAgrup10' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 195 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup2 ]' for field 'strAgrup2' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 187 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup3 ]' for field 'strAgrup3' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 188 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup4 ]' for field 'strAgrup4' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 189 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup5 ]' for field 'strAgrup5' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 190 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup6 ]' for field 'strAgrup6' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 191 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup7 ]' for field 'strAgrup7' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 192 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup8 ]' for field 'strAgrup8' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 193 Drools
Error
BuildError: Unable to create restriction '[QualifiedIndentifierRestr: ==
referencia.strAgrup9 ]' for field 'strAgrup9' in the rule 'existe Alarma'
AlarmaReglasGenerales.drl /aitor/es/simcasva/alarmas/rules line 194 Drools
Error

Thank you very much for your time, Wolfgang.

Best regards,

Manuel Ortiz.


2011/4/29 Wolfgang Laun <wolfgang.laun at gmail.com>

> You can call
>   FactHandle fh = kSession.getFactHandle( factObj );
>
>
>    query "alarmExists"  (AlarmFact key)
> should work in 5.1.1 and 5.2. Did you import AlarmFact in the DRL?
> Otherwise, what message are you getting in which version?
>
> -W
>
> 2011/4/29 Manuel Ortiz <manuel.ortizramos at gmail.com>
>
>> Hello everybody:
>>
>> I have two question related to queries:
>>
>> First one, the one in the subject, I have a query which retrieves facts
>> which have to be modified and updated in working memory. I've seen that
>> the StatefulKnowledgeSession.update() method has the fact handle as input.
>> Is it possible to set the fact handle to null? If it isn't, how can I get
>> the fact handle using the fact retrieved with the query?
>>
>> Second one, related to writing, I though of parameterizing the query using
>> the fact pattern, something like this,
>>
>> query "alarmExists"  (AlarmFact key)
>>     $alarm : AlarmFact(key1 == key.key1,
>>                    key2 == key.key2,
>>                    key3 == key.key3
>>                    )
>>
>> end
>>
>>
>>
>> but the rule compiler doesn't accept this sintax. Is it a requirement that
>> query parameters are basic java types or is there a way to write this query
>> using more complex Object parameters?
>>
>> Thank you for your time.
>>
>> Best Regards,
>>
>> Manuel Ortiz.
>>
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
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