To invoke other components, instantiate a stub for the second component, then use the stub to invoke methods on the component.
You must use a stub to issue intercomponent calls. If you call methods in another C++ component directly, EAServer features such as transactions and security will not work.
To invoke methods in other components, create an ORB instance to obtain object references to other components and invoke methods on the object references. You obtain object references for other components on the same server by invoking string_to_object with the IOR string specified as Package/Component. For example:
CORBA::Object_var obj =
orb->string_to_object("MyPackage/MyComponent");
MyModule::MyInterface_var i =
MyModule::MyInterface::_narrow(obj);
When making intercomponent calls using string_to_object, the user name of the client that executed the component is automatically used for authorization checking. string_to_object returns an instance running on the same server if the component is locally installed; otherwise, it attempts to resolve a remote instance using the naming server.
Your component may need to invoke methods on a component hosted by another vendor’s CORBA server-side ORB. Sybase recommends that C++ components use the EAServer client-side ORB for all IIOP connections made from EAServer components. See “Connecting to third-party ORBs using the EAServer client ORB” for more information.
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