9:34 a.m.
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.
10:35 a.m.
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(a)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(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
11:15 a.m.
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(a)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(a)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(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
11:28 a.m.
2011/4/29 Manuel Ortiz <manuel.ortizramos(a)gmail.com>
import es.simcasva.alarmas.src.MDSVHechoAlarma;
query "existe Alarma" (MDSVHechoAlarma referencia)
$alarma : MDSVHechoAlarma( iIdAlarma == referencia.iIdAlarma,
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
"referencia" is a query parameter (and not a variable bound to a fact);
to
access any of its fields or methods you must use Java notation, requiring
you to use a "return value restriction", hence the parentheses:
$alarma : MDSVHechoAlarma( iIdAlarma == ( referencia.getIIdAlarma() ),
11:57 a.m.
Hi Wolfgang:
Thank you very much for the explanation. Now everyting works fine.
Best regards,
Manuel Ortiz.
2011/4/29 Wolfgang Laun <wolfgang.laun(a)gmail.com>
2011/4/29 Manuel Ortiz <manuel.ortizramos(a)gmail.com>
>
> import es.simcasva.alarmas.src.MDSVHechoAlarma;
>
>
> query "existe Alarma" (MDSVHechoAlarma referencia)
> $alarma : MDSVHechoAlarma( iIdAlarma == referencia.iIdAlarma,
>
>
> 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
>
>
"referencia" is a query parameter (and not a variable bound to a fact); to
access any of its fields or methods you must use Java notation, requiring
you to use a "return value restriction", hence the parentheses:
$alarma : MDSVHechoAlarma( iIdAlarma == ( referencia.getIIdAlarma() ),
_______________________________________________
rules-users mailing list
rules-users(a)lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
4998
days inactive
4998
days old
4 comments
2 participants
participants (2)
-
Manuel Ortiz -
Wolfgang Laun