> Thanks Edson. Here it is :
>
> rule "CALCUL_RELICAT_CP"
> salience 8
> no-loop
> when
> not $RELICAT_CP : VOCounter (code=="RELICAT_CP")
> $startDate : RuleDate(name=="startDate")
> $endDate : RuleDate(name=="endDate")
> $SOLDE_CP_CUM : VOCounter ( code=="SOLDE_CP_CUM",
> startDate.year == ($startDate.year - 1) )
> then
> VOCounter $relicat = createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value);
> insert($relicat);
> insert(createCounter(drools,"SOLDE_RELICAT_CP",$SOLDE_CP_CUM.value));
> end
>
> I thought about trying with a newer version of mvel, but it doesn't
> look so easy to upgrade it :(
>
> 2008/12/15 Edson Tirelli <
tirelli@post.com>:
>>
>> Can you plz show us the DRL instead of the DSLR for your rule? use the
>> DRLViewer tab for that...
>>
>> 2008/12/15 Olivier THIERRY <
olivier.thierry@gmail.com>
>>>
>>> Hi,
>>>
>>> I use drools 4.0.7 and I encounter a problem calling a function from a
>>> rule written for mvel dialect.
>>>
>>> The function I need to call has this signature :
>>>
>>> function VOCounter createCounter(org.drools.spi.KnowledgeHelper
>>> drools, String code, Number number)
>>>
>>> When I call this function, I want to assign result to a variable, for
>>> example to insert it to working memory later, or just to use it in
>>> another function call.
>>> So I wrote something like that (I am writing a DSL so part of the code is
>>> DSL ):
>>>
>>> rule "CALCUL_RELICAT_CP"
>>> salience 8
>>> no-loop
>>> when
>>> not There is a counter called "RELICAT_CP"
>>> There is a date called "startDate"
>>> There is a date called "endDate"
>>> There is a counter called "SOLDE_CP_CUM" with
>>> - start date is last year
>>> then
>>> > VOCounter $relicat =
>>> > createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value);
>>> > insert($relicat);
>>> Copy counter $SOLDE_CP_CUM to SOLDE_RELICAT_CP
>>> end
>>>
>>> But I have the following stack trace :
>>>
>>> org.drools.spi.ConsequenceException:
>>> org.mvel.UnresolveablePropertyException: unable to resolve token:
>>> createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value)
>>> at
>>> org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:13)
>>> at
>>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:558)
>>> at
>>> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518)
>>> at
>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:475)
>>> at
>>> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:439)
>>> at
>>> fr.horoquartz.t4.test.drools.TestRuleBase.executeRuleWithDsl(TestRuleBase.java:120)
>>> at fr.horoquartz.t4.test.drools.Test1.testDsl(Test1.java:39)
>>> Caused by: org.mvel.UnresolveablePropertyException: unable to resolve
>>> token: createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value)
>>> at
>>> org.mvel.ast.PropertyASTNode.initializePropertyNode(PropertyASTNode.java:129)
>>> at
>>> org.mvel.ast.PropertyASTNode.getReducedValueAccelerated(PropertyASTNode.java:24)
>>> at org.mvel.ExecutableAccessor.getValue(ExecutableAccessor.java:45)
>>> at
>>> org.mvel.ast.TypedVarNode.getReducedValueAccelerated(TypedVarNode.java:43)
>>> at org.mvel.MVELRuntime.execute(MVELRuntime.java:90)
>>> at
>>> org.mvel.CompiledExpression.getValue(CompiledExpression.java:111)
>>> at org.mvel.MVEL.executeExpression(MVEL.java:235)
>>> at
>>> org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:48)
>>> at
>>> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554)
>>> ... 34 more
>>>
>>> What is strange is that it works if I don't assign function call
>>> result to a variable. For example the following works :
>>>
>>> insert (createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value));
>>>
>>> It also works if I assign $SOLDE_CP_CUM.value to a temporary variable
>>> and use it for function call :
>>>
>>> Number $val = $SOLDE_CP_CUM.value;
>>> VOCounter $relicat = createCounter(drools,"RELICAT_CP",$val);
>>> insert($relicat);
>>>
>>> I had not this problem using java dialect. I understand nothing in
>>> what happens ... Anyone has an idea what the problem is ?
>>>
>>> Thanks in advance,
>>>
>>> Olivier
>>> _______________________________________________
>>> rules-users mailing list
>>>
rules-users@lists.jboss.org
>>>
https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>>
>> --
>> Edson Tirelli
>> JBoss Drools Core Development
>> JBoss, a division of Red Hat @
www.jboss.com
>>
>> _______________________________________________
>> rules-users mailing list
>>
rules-users@lists.jboss.org
>>
https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
>
>
> --
> Seules 2 choses sont infinies : l'univers et la bêtise humaine ; et
> encore pour l'univers, je ne suis pas sûr … (Einstein)
>
--
Seules 2 choses sont infinies : l'univers et la bêtise humaine ; et
encore pour l'univers, je ne suis pas sûr … (Einstein)
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