java problem with transfer data in ejb(stateless bean)

I have a session bean, and this bean is used to connect to database. I want this bean to transfer a resultset to client, but it can't work. So I think that maybe I can use a class to store data and transfer data but I don't know how to do it. Hope someone help me figure out this. This is my code:

///////////////////////EJB object
package Stateless;

import java.rmi.Remote;
import java.rmi.RemoteException;
import javax.ejb.*;

public interface ejbStateless extends EJBObject,Remote
{
      public String sayHi() throws RemoteException;
      public myOwn saveInfo(int a,int b) throws RemoteException;
}

////////////////EJB home
package Stateless;

import java.rmi.Remote;
import java.rmi.RemoteException;
import javax.ejb.*;

public interface ejbStateless extends EJBObject,Remote
{
      public String sayHi() throws RemoteException;
      public myOwn saveInfo(int a,int b) throws RemoteException;
}

/////////////////EJB bean
package Stateless;

import java.util.*;
import java.rmi.*;
import javax.ejb.*;

public class ejbStatelessBean implements SessionBean
{
      private SessionContext ctx;
      public void ejbCreate()
      {
            System.out.println ("ejb create");
      }
      
      public void ejbPassivate()
      {
            
      }
      public void ejbActivate()
      {
      }
      public void ejbRemove()
      {
            System.out.println ("ejb remove");
      }
      public void setSessionContext(SessionContext ctx)
      {
            this.ctx=ctx;
      }
      public String sayHi() throws RemoteException
      {
            //System.out.println ("Hi");
            return ("Chao ban");
      }
      
      public myOwn saveInfo(int a,int b) throws RemoteException
      {
            myOwn m=new myOwn();
            m.a=a;
            m.b=b;
            return m;
      }
      
}

////////////////////EJB Client
package Stateless;

import javax.naming.*;
import javax.rmi.*;
import java.rmi.*;
import java.util.Properties;

public class ejbStatelessClient
{
      public static void main(String arg[])
      {
            String say;
            System.out.println("\n Begin StatelessSession HelloClient Demo...\n");
            try
            {
                  Context ctx=new InitialContext();
                  Object objref=ctx.lookup("java:comp/env/Hello");
                  ejbStatelessHome home=(ejbStatelessHome)PortableRemoteObject.narrow(objref,ejbStatelessHome.class);
                  System.out.println ("Create ejbStateless Client\n");
                  ejbStateless ejb1=home.create();
                  say=ejb1.sayHi();
                  myOwn m=new myOwn();
                  m=ejb1.saveInfo(1,3);
                  System.out.println (m.a);
                  System.out.println (m.b);
                  System.out.println (say);
            }
            catch(Exception e)
            {
                  System.out.println (e.getMessage());
            }
            System.out.println ("\n End StatelessSession ");
      }
}