ejb 3.0 lookup

[riccardo alfrilli]

hi all
i'm trying to use annotation with ejb 3.0 in an application client project

this is my session bean Remote Interface:

package com.titan.travelAgent;
 
import com.titan.domain.Cabin;
import javax.ejb.Remote;
 
@Remote
public interface TravelAgentRemote {
    public void createCabin(Cabin cabin);
    public Cabin findCabin(int id);
}   

this is my Ejb Implementation:

 
package com.titan.travelAgent;
 
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import com.titan.domain.Cabin;
 
@Stateless(mappedName="TravelAgent")
public class TravelAgentBean implements TravelAgentRemote {
    
    // Add business logic below. (Right-click in editor and choose
    // "EJB Methods > Add Business Method" or "Web Service > Add Operation")
    @PersistenceContext
    (unitName="TitanCruisesEJBPU")
    private EntityManager manager;
    
    public void createCabin(Cabin cabin) {
        manager.persist(cabin);
    }
    
    public Cabin findCabin(int pKey) {
        return manager.find(Cabin.class, pKey);
    }
 
}    

and finally the application client main:

 

package titancruisesclient;
 
import com.titan.domain.Cabin;
import com.titan.travelAgent.TravelAgentRemote;
import javax.ejb.EJB;
 
public class Main {
    @EJB
    private static TravelAgentRemote travelAgentBean;
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
            Cabin c = new Cabin();
            travelAgentBean.createCabin(c);
 
        // TODO code application logic here
    }
    

it's return a nullpointerexception.I'm using netbeans 6.1 and glassfish somebody can help?tnx

[Nitin Takale]

Hi Dude,

Since you are using netbeans I'm guessing that you are using Glassfish So..

come back to command prompt.........

set path to jdk/bin then set classpath to GLASSFISH_HOME/lib/javaee.jar and appserv-rt.jar and then check out.

Hope it'll solve your problem

[Jeanne Boyarsky]

Nitin,
Can you adjust your display name from "NITIN TAKALE" to "Nitin Takale" ? It's a bit jarring to read all in uppercase. You can easily change it in your profile.

Thanks.

[riccardo alfrilli]

tnx for the answer!to solve my problem i hate to create an enterprise application with ejb module and application client module...now that's work!

[Jetendra Ivaturi]

This is how we look up in weblogic, where HelloWorldEJB is a mapped name.

Hashtable p=new Hashtable();
p.put(Context.PROVIDER_URL,"t3://localhost:7001");
p.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");


Context context = new InitialContext(p);
pw.println("got the context");
Object ref=context.lookup("HelloWorldEJB#stateless.bean.CalculatorRemote");
CalculatorRemote helloWorldEJB = (CalculatorRemote)PortableRemoteObject.narrow(ref,CalculatorRemote.class);