Sun Microsystems 820433510 manual Configuring the ORB, Managing Iiop Listeners, What is the ORB?

Configuring the ORB

What is the ORB?

The Object Request Broker (ORB) is the central component of CORBA. The ORB provides the required infrastructure to identify and locate objects, handle connection management, deliver data, and request communication.

A CORBA object never talks directly with another. Instead, the object makes requests through a remote stub to the ORB running on the local machine. The local ORB then passes the request to an ORB on the other machine using the Internet Inter-Orb Protocol (IIOP for short). The remote ORB then locates the appropriate object, processes the request, and returns the results.

IIOP can be used as a Remote Method Invocation (RMI) protocol by applications or objects using RMI-IIOP. Remote clients of enterprise beans (EJB modules) communicate with the Enterprise Server via RMI-IIOP.

IIOP Listeners

An IIOP listener is a listen socket that accepts incoming connections from the remote clients of enterprise beans and from other CORBA-based clients. Multiple IIOP listeners can be configured for the Enterprise Server. For each listener, specify a port number, a network address, and optionally, security attributes.

Configuring the ORB

To configure ORB, in the Admin Console, click the Configuration tab. Click the ORB tab corresponding to the instance you want to configure.

Managing IIOP Listeners

To create, edit and delete IIOP listeners, click the Configuration tab in the Admin Console. Click the ORB tab corresponding to the instance you want to configure. Select the IIOP Listeners tab. For more detailed instructions, consult the Admin Console Online Help.

162 Sun GlassFish Enterprise Server 2.1 Administration Guide • December 2008