Discussions

EJB programming & troubleshooting: Why do we use PortableRemoteObject.narrow() method?

Bookmark and Share Get thread feed

  1. Why do we use PortableRemoteObject.narrow() method? (4 messages)

    Why do we use PortableRemoteObject.narrow()?
    I read about PortableRemoteObject.narrow() at many places, but I didn't understand the concept.
    Can any body explain in simple form?
    Mouli
    Reply to this

    Threaded Messages (4)

  2. Why do we use PortableRemoteObject.narrow() method?[ Go to top ]

    Some remoting technologies, unlike RMI, do not support remote polymorhpism. CORBA is one of them. Because CORBA wasn't design to work in a dynamic class loading environment (not exclusively anyway) it wasn't possible for it to implement this feature. Therefore, if you want to get an actual type rather than the declared type you have to narrow the stub yourself.
    J2EE is generally designed to support transports other than RMI (such as CORBA' IIOP), you in order to be compatible you have to comply with these standards as well.

    Gal
    Reply to this Reply to original

  3. Why do we use PortableRemoteObject.narrow() method?[ Go to top ]

    Gr8 !! u had given a very good explanation...
    Reply to this Reply to original

  4. Why do we use PortableRemoteObject.narrow() method?[ Go to top ]

    good answer !
    Reply to this Reply to original

  5. Why do we use PortableRemoteObject.narrow() method?[ Go to top ]

    I understood your explanation
    and thank you for your great explanation.
    Mouli
    Reply to this Reply to original