Ejb Invocation

Question

Hi friends,
I am trying to invoke an eij object without adding the ejb archive file to the project lib folder..
how can i do this ...
here am using ejb reflection concept (this works fine in other web servers like weblogic)
here my code is ..
       try{
           Properties props = new Properties();
                 props.put(Context.INITIAL_CONTEXT_FACTORY,
                   "com.sap.engine.services.jndi.InitialContextFactoryImpl");
           props.put(Context.PROVIDER_URL,"sapsrv02:p4_50204");
          InitialContext context = new InitialContext(props);
          Object obj = context.lookup("PayCheckBeanJNDI");//HWBean //JNDI
          EJBHome home = (EJBHome)PortableRemoteObject.narrow(obj,EJBHome.class);
     }catch(NamingException e)     {
          msgMNG.reportException("NamingException : "+e.getMessage(),false);
     } catch (javax.ejb.EJBException e)     {
          msgMNG.reportException("javax.ejb.EJBException : "+e.getMessage(),false);
     }catch(Exception e){
          msgMNG.reportException("Exception  : "+e.getMessage(),false);
I am facing an exception while running this code ...
classcastExceptio : javax. ejb.EJBHome
I have ,add the ejb20.jar, sapj2eeclinet.jar in classpath still am facing the same problem..
Can anyone help me..
Thanks & Regards
Krish

Answer 1

Hi,
Object obj = context.lookup("com.sap/CalculatorServiceEAR/REMOTE/CalculatorBean/com.bcone.test.CalculatorRemote");
          System.out.println(obj.getClass());
          CalculatorRemote helloRef = (CalculatorRemote)
          PortableRemoteObject.narrow(obj, CalculatorRemote.class);
          System.out.println(helloRef.add(10, 20));
The above works fine when i add the  CalculatorEJB.jar to my project classpath..
But my recuirment is ..
-> do not add the  CalculatorEJB.jar  to my project classpath..
-> Should invoke the ejb  object by using jndi name alone
Wanna to load the CalculatorRemote class in
EJBHome home = (EJBHome)PortableRemoteObject.narrow(obj, javax.ejb.EJBHome.class);
This is possible in weblogic server by using reflection technology... Whether this can be done using sap server ...
If it is possible means, how can be done?
Thanks
Krish