Do you have the import for your signature class?

import my.package.Signature

    Edson

2009/11/24 richarda <richard.ambridge@gmail.com>

So, my code is doing this:

 KnowledgeBaseConfiguration conf =
KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
           conf.setOption(EventProcessingOption.STREAM);
           KnowledgeBuilder builder =
KnowledgeBuilderFactory.newKnowledgeBuilder();
           try {
               File f = new File("/tmp/my.pkg");
               InputStream stream = new FileInputStream(f);
               if (stream == null) {
                   jlog.fatal("Unable to find rule pkg");
               } else {
                   jlog.info("adding pkg");

builder.add(ResourceFactory.newInputStreamResource(stream),
ResourceType.PKG);
               }
           } catch (Exception e) {
               e.printStackTrace();
           }
           KnowledgeBase kbase =
KnowledgeBaseFactory.newKnowledgeBase(conf);
           kbase.addKnowledgePackages(builder.getKnowledgePackages());
           jlog.info("setup creating knowledge session");
           ksession = kbase.newStatefulKnowledgeSession();
           jlog.info(" setup ksession created");


The pkg was created from Guvnor.

If in the package declaration area in Guvnor,  (where you put the import
statements)
If I put
declare Signature
 @role ( event )
end

then build the package, save it to disk /tmp/my.pkg
on startup I get:

[#|2009-11-24T14:50:38.944+0000|WARNING|sun-appserver2.1|javax.enterprise.system.stream.err|_ThreadID=12;_ThreadName=pool-1-thread-3;_RequestID=7c35064d-757e-4519-b5eb-433db89e168d;|org.drools.RuntimeDroolsException:
unable to resolve Type Declaration class 'Signature'
       at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:754)
       at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:515)
       at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)


I need to declare 'Signature' as an 'event'
Am I doing this wrong?

If I do this all in Eclipse and load the DRL files manually it all works.
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--
 Edson Tirelli
 JBoss Drools Core Development
 JBoss by Red Hat @ www.jboss.com