AW: Calling EJBs across applications

[Jens Stutte]

Hi,

you must specify the parameters in the environment you provide for the
InitialContext function (see the code snippet below). But you should do so
only from "real" (remote) clients, within the ejbs itself (for portability)
you should not specify any factory, url, user or password.

Regards,

Jens Stutte


        m_Factory = "com.evermind.server.rmi.RMIInitialContextFactory";
        // The application-name is the one you specify in the orion
server.xml
        m_Url = "ormi://<host>/<application-name>";


        try
        {
                // You could change the environment for the process
permanently, too...
                Hashtable h = new Hashtable();
                h.put(Context.INITIAL_CONTEXT_FACTORY,m_Factory);
                h.put(Context.PROVIDER_URL, m_Url);
                if (m_User != null)
                {
                        h.put(Context.SECURITY_PRINCIPAL, m_User);
                        if (m_Password == null) 
                                m_Password = "";
                        h.put(Context.SECURITY_CREDENTIALS, m_Password);
                } 
                m_jndiContext = new InitialContext(h);
        }
        catch (NamingException ne)
        {
                // TODO: Check for type of error and distinguish...
        }
        catch (javax.ejb.EJBException ee)
        {
                // TODO: Check for type of error and distinguish...
        }

-----Ursprüngliche Nachricht-----
Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Gesendet am: Freitag, 10. März 2000 19:45
An: Orion-Interest
Betreff: Calling EJBs across applications

Hi,

Is it possible with Orion for servlets (and EJBs) to call EJBs when they are
assembled in different applications deployed across different servers?   If
so, how?  Calling EJBs across applications is useful as we use EJBs to
implement common business processes that are to be shared and used across
multiple applications dispersed across our enterprise. 

It used to be possible before J2EE as one could instantiate an
InitialContext specifying the factory and url (obtained dynamically through
a configuration mechanism) - now with J2EE one must not specify any
arguments when instantiating the InitialContext thereby delegating this
mapping to the application server.

Thanks, Jeff