Hmmm.... Rikkola can't replicate so something is broken here.... :(
On 28 April 2011 13:42, Michael Anstis <michael.ans...@gmail.com> wrote:
> Hi,
>
> This boiler plate code demonstrates a rather, I suspect large, problem:-
>
> @Test
> public void testPackageAttributesFromDRL() {
>
> KnowledgeBuilder kbuilder =
> KnowledgeBuilderFactory.newKnowledgeBuilder();
> kbuilder.add( new ClassPathResource( "org/drools/example.drl" ),
> ResourceType.DRL
> ); //<--- Error
>
> KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
> kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
>
> }
>
> throws:-
>
> java.lang.NullPointerException
> at
> org.drools.compiler.PackageBuilder.generateDeclaredBean(PackageBuilder.java:1433)
> at
> org.drools.compiler.PackageBuilder.processTypeDeclarations(PackageBuilder.java:1272)
> at
> org.drools.compiler.PackageBuilder.mergePackage(PackageBuilder.java:895)
> at
> org.drools.compiler.PackageBuilder.newPackage(PackageBuilder.java:883)
> at
> org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:601)
> at
> org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:297)
> at
> org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:473)
> at
> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28)
> at
> org.drools.BinaryPackage.testPackageAttributesFromDRL(BinaryPackage.java:35)
>
> In org.drools.compiler.PackageBuilder.generateDeclaredBean the call to the
> following returns null.
>
> JavaDialectRuntimeData dialect = (JavaDialectRuntimeData)
> pkgRegistry.getDialectRuntimeRegistry().getDialectData( "java" );
>
> DRL is:-
>
> package example
>
> declare Person
> age: Integer
> name: String
> end
>
> rule "Row 1 dtable"
> salience 1
> dialect "mvel"
> when
> $p : Person( name == "Bill" , age != "30" )
> then
> $p.setAge( 12345 );
> end
>
> It worked OK yesterday.
>
> Any takers?
>
> With kind regards,
>
> Mike
>
_______________________________________________
rules-dev mailing list
rules-dev@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-dev
