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EJB 3.0 invocation over OSB 11g

Hi Guyz,
Today i am going to explain how we can call a remote EJB/Local EJB over OSB 11g, there are two ways for this. Here are going with way1, in next post i will explain how to call EJB with 2nd way.
EJB Layer configuration for remote invocation:
Most of the time we design LOCAL EJB, so here we are starting with a local EJB to remote EJB design.
Right now EJB interface is marked as @local, it restrict the OSB to consume it, So it marked as @remote, EJB interface and implementation should marked with following line of code.
Interface:
@Remote
public interface SandeepTest
Interface Implementation:
 @Stateless(name = "SandeepTestImpl", mappedName = "ejb/SandeepTestImpl")
@Remote(SandeepTest.class)
@TransactionAttribute(TransactionAttributeType. NOT_SUPPORTED)
public class SandeepTestImpl implements SandeepTest
{
/*
Interface methods implementation......
*/
}
Prepare a client JAR file which contain this interface definition:
Deploy EJB jar over weblogic server and make a JNDI look up for the EJB, as in our case we defined mappedName = "ejb/SandeepTestImpl", So over weblogic JNDI tree EJB will be available inside ejb.SandeepTestImpl #packagename.InterfaceName.
Weblogic JNDI tree look up: Deploy EJB jar over weblogic.
OSB Layer task:
  1. Design a business service layer with EJB client jar
  2. Generate WSDL from business service
  3. Design a proxy service that will invoke the EJB business service.
  4. If your remote EJB is running on a different J2EE Server then you need to add a JNDI provider for your EJB.
  5. Provide the provider URL and the username / password.
  6. Create a service interface jar of your remote EJB. (This jar must not contain the Bean or the persistence.xml, just the entities and the remote interface).  Import this jar in your OSB project. Select File system.
  7. Browse to your deploy folder and select the Service interface jar.
  8. EJB Transport 
    Create a Business Service with a Transport Service Type.
  9. Select the EJB protocol and use this ejb:JNDIProvider:XXXXXX as an endpoint URI.  JNDIProvider is the name of the just created JNDI provider and XXXX is the JNDI name of your remote EJB.
  10. In the EJB Transport Tab you need to enable EJB 3, add the service interface jar and select the remote interface.
  11. You can enable / disable some methods or change the names of the input or output parameters.
  12. Next step is to make a Proxy Service on this Business Service. Generate and save the WSDL on this BS.
  13. Use this WSDL in the proxy service and add in the Service Flow some Operation branches and use the EJB Business service or you can design your own WSDL and it's schema XSD file.
  14. Test web service over SBCONSOLE.

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