Accessing stateless EJB3 bean from a ejb-jar

[zhuhuapeng]

this problem had been nagging me for days,i had made a project using ejb3. and deployed it to jboss4.2.3GA. the following is part of my project:

1:persistence.xml

<persistence-unit name="cattle_persis"
transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:/cattleDB</jta-data-source>
<properties>
<property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.CMTTransactionFactory" />
<property name="org.hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup"/>

2:interface

@Remote
public interface ICustomerService {
public void persist(CustomerEO eo);
}

3:bean

@Stateless
public class CustomerService implements ICustomerService {
@PersistenceContext(unitName="cattle_persis")
private EntityManager entityManager;
public void persist(CustomerEO eo) {
 entityManager.persist(eo);
}
}

4:entity

@Entity
@Table(name="CUSTOMER")
public class CustomerEO {...

5:testClient

...
Hashtable<String,String> props = new Hashtable<String,String>();
props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
props.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
props.put(Context.PROVIDER_URL, "jnp://127.0.0.1:1099");
context = new InitialContext(props);
...
Context ctx = getInitialContext();
Object obj = ctx.lookup("CustomerService/remote");
ICustomerService service = (ICustomerService)PortableRemoteObject.narrow(obj,
 ICustomerService.class);
....

then run jboss, part of the loginfo

[ConnectionFactoryBindingService] Bound ConnectionManager 'jboss.jca:service=DataSourceBinding,name=/cattleDB' to JNDI name 'java:/cattleDB'
17:01:19,664 INFO [JmxKernelAbstraction] creating wrapper delegate for: org.jboss.ejb3.entity.PersistenceUnitDeployment
17:01:19,667 INFO [JmxKernelAbstraction] installing MBean: persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis with dependencies:
17:01:19,667 INFO [JmxKernelAbstraction] jboss.jca:name=cattleDB,service=DataSourceBinding
17:01:19,853 INFO [JmxKernelAbstraction] creating wrapper delegate for: org.jboss.ejb3.stateless.StatelessContainer
17:01:19,857 INFO [JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=demoEJB-1.0.jar,name=CustomerService,service=EJB3 with dependencies:
17:01:19,857 INFO [JmxKernelAbstraction] persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis
17:01:19,859 INFO [EJB3Deployer] Deployed: file:/E:/TheOrc/base/jboss-4.2.3.GA/server/default/deploy/demoEJB-1.0.jar
17:01:19,886 INFO [TomcatDeployer] deploy, ctxPath=/jmx-console, warUrl=.../deploy/jmx-console.war/
17:01:20,009 ERROR [URLDeploymentScanner] Incomplete Deployment listing:

--- MBeans waiting for other MBeans ---
ObjectName: persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis
 State: NOTYETINSTALLED
 I Depend On:
 jboss.jca:name=cattleDB,service=DataSourceBinding
 Depends On Me:
 jboss.j2ee:jar=demoEJB-1.0.jar,name=CustomerService,service=EJB3

ObjectName: jboss.j2ee:jar=demoEJB-1.0.jar,name=CustomerService,service=EJB3
 State: NOTYETINSTALLED
 I Depend On:
 persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis

--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: jboss.jca:name=cattleDB,service=DataSourceBinding
 State: NOTYETINSTALLED
 Depends On Me:
 persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis

in jmx-console page,get the following message:

persistence.units
jar=demoEJB-1.0.jar,unitName=cattle_persis

at last ,run testClient,and got the following exception:

Exception in thread "main" javax.naming.NameNotFoundException: CustomerService not bound
...

can there anyone help me to resolve this problem,very thanks.

[jaikiran]

ObjectName: jboss.jca:name=cattleDB,service=DataSourceBinding
State: NOTYETINSTALLED
Depends On Me:
persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis

This shows that the datasource is not yet bound. But earlier in the log:

[ConnectionFactoryBindingService] Bound ConnectionManager 'jboss.jca:service=DataSourceBinding,name=/cattleDB' to JNDI name 'java:/cattleDB'

This indicates that the datasource is being bound. The only strange thing that i see in that log message is the front-slash in:

'jboss.jca:service=DataSourceBinding,name=/cattleDB'

Can you post the contents of your datasource file (*-ds.xml) and where is it placed?

[zhuhuapeng]

You said the problem was absolutely correct
the previous configuration of oracle-ds.xml looks like this:

<datasources>
 <local-tx-datasource>
 <jndi-name>/cattleDB</jndi-name>
 ....

and now i have modified it as the following

<datasources>
 <local-tx-datasource>
 <jndi-name>cattleDB</jndi-name>
 ....

then run,everything is ok .
thanks for your help !!