Introduction

An ORB makes it possible for CORBA objects to communicate with each other by connecting objects making requests (clients) with objects servicing requests (servers). Java provides the ORB class to obtain references to objects implemented anywhere on the network. The ORB class also provides "pluggable ORB implementation" APIs that allow another vendor's ORB implementation to be used. To choose an orb implementation we have to specify standard java corba properties and how obtain a reference to the NameService.

Standard Java CORBA Properties

Reference to the NameService

We have to specify in the ORB implementation used how to obtain an initial object reference to the NameService.

If we use JacORB, we have to add a property named ORBInitRef.NameService in the wsdl file.

Here's an example of how to set all the informations needed for the JacORB implementation in the wsdl file:

  <imolacorba:address name="<CORBA_SERVANT>" localizationType="<LOCALIZATION_TYPE>">    
    <imolacorba:orb>
            <imolacorba:property name="org.omg.CORBA.ORBClass" value="org.jacorb.orb.ORB"/>
            <imolacorba:property name="org.omg.CORBA.ORBSingletonClass" value="org.jacorb.orb.ORBSingleton"/>
            <imolacorba:property name="ORBInitRef.NameService" value="corbaloc::localhost:1050/NameService"/>
    </imolacorba:orb>
  </imolacorba:address>

Using JacORB with GlassFishESB

The classes configured in the WSDL must be reacheable at runtime. For example, to use jacORB with GlassFishESB, the ORB libraries (with their dependencies) must be added to the lib/ext directory of the GlassFish domain.

• avalon-framework-4.1.5.jar

• idl.jar
• jacorb.jar
• logkit-1.2.jar []