Re: [rules-users] Exception using persistence

Well, I tried this but it does not work. Checking additionally the BitronixInitialContextFactory API where it says: --------------------------------------------- "Implementation of InitialContextFactory that allows lookup of transaction manager and registered resources. The easiest way to use this provider is to create a jndi.properties file in your classpath with this content: java.naming.factory.initial=bitronix.tm.jndi.BitronixInitialContextFactory Alternatively, you can create a InitialContext object with an environment pointing to this class: Hashtable env = new Hashtable(); env.put(Context.INITIAL_CONTEXT_FACTORY, "bitronix.tm.jndi.BitronixInitialContextFactory"); Context ctx = new InitialContext(env); The transaction manager can be looked up at the standard URL java:comp/UserTransaction while resources can be looked up using their unique name as set in ResourceBean.getUniqueName(). " --------------------------------------------- So, I tried the following ( Its in Scala, but shouldn't be a problem to read): try { val env = new java.util.Hashtable[String, String] env.put(Context.INITIAL_CONTEXT_FACTORY, "bitronix.tm.jndi.BitronixInitialContextFactory"); val ctx = new InitialContext(env); val ut1 : UserTransaction = (ctx.lookup( "java:comp/UserTransaction" )).asInstanceOf[UserTransaction] } catch { case ex: Exception => ex.printStackTrace() } But still getting the same problem as before at line "val ut1 : ...". What I do not get is that the Bitronix API says that the standard URL is "java:comp/UserTransaction", but its somehow not found !?!?!? Any ideas ? Cheers, Rob. Am 31.05.2010, 02:54 Uhr, schrieb Mark Proctor <mproctor(a)codehaus.org&gt;: > On 30/05/2010 20:28, Robert wrote: >> Hi, I followed the instructions on setting up the persistence in the >> drools flow doc, but I get the following exception: >> >> >> Exception in thread "main" java.lang.RuntimeException: Could not commit >> session >> at >> org.drools.persistence.session.SingleSessionCommandService.<init>(SingleSessionCommandService.java:133) >> at >> org.drools.persistence.jpa.impl.JPAKnowledgeServiceProviderImpl.newStatefulKnowledgeSession(JPAKnowledgeServiceProviderImpl.java:44) >> at >> org.drools.persistence.jpa.JPAKnowledgeService.newStatefulKnowledgeSession(JPAKnowledgeService.java:93) >> at >> com.rob.server.core.process.drools.tasks.DroolsProcessHandler.<init>(DroolsProcessHandler.scala:130) >> at >> com.rob.server.core.process.drools.tasks.StartDroolsProcessHandler$.main(DroolsProcessHandler.scala:33) >> at >> com.rob.server.core.process.drools.tasks.StartDroolsProcessHandler.main(DroolsProcessHandler.scala) >> Caused by: javax.naming.NameNotFoundException; remaining name >> 'UserTransaction' >> at org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:576) >> at org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:663) >> at org.eclipse.jetty.jndi.NamingContext.lookup(NamingContext.java:678) >> at >> org.eclipse.jetty.jndi.java.javaRootURLContext.lookup(javaRootURLContext.java:110) >> at javax.naming.InitialContext.lookup(InitialContext.java:392) >> at >> org.drools.persistence.session.SingleSessionCommandService.<init>(SingleSessionCommandService.java:109) >> ... 5 more >> >> >> I have no idea what this means. I guess SingleSessionCommandService is >> looking up for "UserTransaction", but whats the "UserTransaction" ? >> > You need to configure JTA and JNDI, it uses the standard JNDI lookup > mechanism to find the UserTransaction it's to be associated with. See > javadocs example here: > http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/tr... > > Each transaction framework has a different way to be configured, some > are simpler than others. > > Mark >> Cheers, Rob. >> >> > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users