[jboss-jira] [JBoss JIRA] Updated: (JBRULES-2436) Inheritance of events does not work as one would expect when using working memory entry-points

[Mark Proctor (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBRULES-2436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Proctor updated JBRULES-2436:
----------------------------------

    Fix Version/s: 5.1.0.M2
         Assignee: Edson Tirelli  (was: Mark Proctor)


> Inheritance of events does not work as one would expect when using working memory entry-points
> ----------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-2436
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-2436
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core (fusion)
>            Reporter: Jerome Bernard
>            Assignee: Edson Tirelli
>             Fix For: 5.1.0.M2
>
>
> When using working memory entry-points, I have a different behaviour than when I use the session.
> Here is a test illustrating this:
> package org.drools.test;
> import org.drools.KnowledgeBase;
> import org.drools.KnowledgeBaseConfiguration;
> import org.drools.KnowledgeBaseFactory;
> import org.drools.builder.KnowledgeBuilder;
> import org.drools.builder.KnowledgeBuilderFactory;
> import org.drools.builder.ResourceType;
> import org.drools.conf.EventProcessingOption;
> import org.drools.io.ResourceFactory;
> import org.drools.logger.KnowledgeRuntimeLoggerFactory;
> import org.drools.runtime.StatefulKnowledgeSession;
> import org.drools.runtime.rule.WorkingMemoryEntryPoint;
> import org.junit.After;
> import org.junit.Before;
> import org.junit.Test;
> import java.io.StringReader;
> public class DroolsFusionInheritanceBugsTest {
>     private StatefulKnowledgeSession session;
>     private WorkingMemoryEntryPoint stream;
>     private final static String drl = "package org.drools.test;\n" +
>             "declare A\n" +
>             "  @role(event)\n" +
>             "end\n" +
>             "\n" +
>             "rule \"myrule\"\n" +
>             "when\n" +
>             "  $a : A() from entry-point \"mystream\"\n" +
>             "then\n" +
>             "  System.out.println(\"fired!\");\n" +
>             "end\n";
>     @Test
>     public void testOkWithEventsInheritance() {
>         session.insert(new A());
>         session.insert(new B());
>         session.fireAllRules();
>     }
>     @Test
>     public void testFailsWithEventsInheritanceThroughWorkingMemoryEntryPoint() {
>         stream.insert(new A());
>         stream.insert(new B());
>         session.fireAllRules();
>     }
>     @Before
>     public void setupDrools() {
>         KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
>         System.out.println("DRL is:\n" + drl);
>         kbuilder.add(ResourceFactory.newReaderResource(new StringReader(drl)), ResourceType.DRL);
>         KnowledgeBaseConfiguration conf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
>         conf.setOption(EventProcessingOption.STREAM);
>         KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(conf);
>         kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
>         session = kbase.newStatefulKnowledgeSession();
>         assert session != null;
>         KnowledgeRuntimeLoggerFactory.newConsoleLogger(session);
>         stream = session.getWorkingMemoryEntryPoint("mystream");
>         assert stream != null : "Could not find working memory entry-point 'mystream'";
>     }
>     @After
>     public void releaseDroolsSession() {
>         if (session != null)
>             session.dispose();
>     }
> }
> class A {}
> class B extends A { }
> When using working memory entry-points, the insert of a B instances fails with a:
> java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle

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