Caller propagation allows an EJB 2.0 RMI/IIOP client to pass principal information to a server and have that information propagated to other servers. In other words, EAServer 4.0 can pass a client’s user name or X.509 certificate information from an EJB on one server, to an EJB on a different server. For example:
The client passes principal information to EAServer1, where the information is authenticated.
EAServer1 retrieves the remote client’s authentication information by calling getCallerPrincipal().
EJBA, on EAServer1, makes a call to another Bean, which resides on EAServer2.
The propagated caller information is retrieved on EAServer2 using the getCallerPrincipal() method.
To enable caller propagation for EJB component calls made
in servlet or component code, you must specify a corbaname URL
in the EJB Reference properties for the EJB component, servlet,
or JSP that issues the call.
For information on interoperable naming URLs, see Chapter 9, “EAServer EJB Interoperability,” in the EAServer Programmer’s Guide.
