hai all., When the PortableRemoteObject.narrow() funciotn should be called to the reference of the Home interface .,
Thanks in advance
According to the Spec, this should always be used:
5.9 Type narrowing
A client program that is intended to be interoperable with all compliant EJB Container implementations
must use the javax.rmi.PortableRemoteObject.narrow(...) method to perform
type-narrowing of the client-side representations of the home and remote interface.
Note: Programs using the cast operator for narrowing the remote and home interfaces are likely to fail
if the Container implementation uses RMI-IIOP as the underlying communication transport.
In other words, your client applications *may* work if you simply cast your remote references to the home and remote interfaces, but if your environment later changes to use RMI-IIOP you will have to recode your clients to use PortableRemoteObject.narrow. So why not just do it correctly up front and avoid the trouble?
Internet Applications Division