Beginner Question (JNDI related)

Question

Hi,
I got a EJB-Server called JONAS and a standalone Tomcat running. Now I want to use a EJB
from a tomcat-servlet. I know that the EJB is already registred in the JNDI-registry implementation
of JONAS. But when I try to look up the EJB with the servlet, Tomcat says "Bean is not bound to that context".
My question is, how does Tomcat know, which JNDI registry is the JONAS registry. What if there
are multiple registries running and I want to use EJB from all that registries in my programm (what is actually not the case).
I am really new to that topic - I just want to grip the mechanism. (Maybe I got to tell Tomcat which
JNDI it should use or smth like that?)
Thanx for any help,
Mischka

Answer 1

Zdrafsvuite,
I am really new to that topic - I just want to grip
the mechanism. (Maybe I got to tell Tomcat which
JNDI it should use or smth like that?)Relatively speaking. You tell InitialContext about the registry needed for the lookup. The following illustrates:
Hashtable reg = new Hashtable();
reg.put( Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.cosnaming.CNCtxFactory" );
reg.put( Context.PROVIDER_URL, "iiop://registry.host.com:1050" );
Context jndi = new InitialContext( reg );The above instructs InitialContext on which context handler factory class to use for accessing the desired registry, and the URL location of the registry. Any number of lookup "handlers" to distributed registries (EJB or otherwise, since the above is relative to JNDI and not EJB ;) can be created and used this way. NOTE: the above, however, is specific to the RI and, possibly, other COS-based namespaces. Consult the documentation for your app server for the correct values for the above (as well as any additional information that may be required...).
I hope this helps.
Thanx for any help,
MischkaDa Sveedanya,
Tony "Vee Schade" Cook