[rules-dev] is this a bug? import function not supporting varargs?

[Michael Neale]

I think there are issues with java5 syntax isms - which varargs is?

On Tue, Nov 3, 2009 at 2:17 PM, Jane James <jane6210 at yahoo.com> wrote:
> Hi guys,
>     I have a question regarding the import function feature in Drools
> 5.1.0M.
>
>     I am reading the Drools JBoss Rules 5.0 book Developer's guide by Michal
> Bali and tried one of the examples but somehow I couldn't get my rules work
> with the method that has varargs.
>
> Here's what I have (copied from page 123):
>
> public class ValidationHelper {
>     public static void error (RuleContext kcontext, Object... context) {
>         KnowledgeRuntime knowledgeRuntime = kcontext.getKnowledgeRuntime();
>         ValidationReport validationReport =
> (ValidationReport)knowledgeRuntime.getGlobal("validationReport");
>         ReportFactory reportFactory = (ReportFactory)
> knowledgeRuntime.getGlobal("reportFactory");
>
>         kcontext.insertLogical(reportFactory.createMessage(
>                 Message.Type.ERROR, kcontext.getRule().getName(),
>                 context));
>     }
> }
>
>
> then in my drools file (copied from page 42):
> i have
>
> import org.drools.runtime.rule.RuleContext;
> import function ValidationHelper.error;
> ...
> rule test
> when
>   #condition
> then
>     error(drools)
>
>
> but when I ran the test, I got error message:
>
> Exception in thread "main" org.drools.runtime.rule.ConsequenceException:
> [Error: unable to resolve method:
> ValidationHelper.error(org.drools.base.DefaultKnowledgeHelper)
> [arglength=1]]
>
> If I remove the parameter Object... context, then everything worked. But I
> do need the varargs here because I need my error message to be more
> specific.
>
> Did anyone else encounter the same problems?
>
>
> thanks!
>
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>



-- 
Michael D Neale
home: www.michaelneale.net
blog: michaelneale.blogspot.com