RFC 2714 (rfc2714) - Page 2 of 10

Schema for Representing CORBA Object References in an LDAP Directory

RFC 2714           Schema for CORBA Object References       October 1999


   For example, an application server may use the directory for
   "registering" CORBA objects representing the services that it
   manages, so that a client can later search the directory to locate
   those services as it needs.

   The motivation for this document is to define a common way for
   applications to store and retrieve CORBA object references from the
   directory.  Using this common schema, any CORBA application that
   needs to read or store CORBA object references in the directory can
   do so in an interoperable way.

   Note that this schema is defined for storing CORBA "object
   references," not CORBA objects in general. There might be other ways
   to store CORBA objects in an LDAP directory but they are not covered
   by this schema.

2. Representation of CORBA Object References

   This document defines schema elements to represent a CORBA object
   reference in LDAP directory. Applications in possession of a
   reference to an object can invoke calls on that object.  Such a
   reference is termed an "interoperable object reference," or IOR.
   Access to CORBA objects by using IORs is achieved transparently to
   the application, by means of the General Inter-ORB Protocol.

   A CORBA object reference is represented in the directory by the
   object class corbaObjectReference. corbaObjectReference is a subclass
   of the abstract corbaObject object class. corbaObjectReference is an
   auxiliary object class, which means that it needs to be mixed in with
   a structural object class.

   The object class corbaContainer is used in a directory entry which
   represents a CORBA object or object reference. It is a structural
   object class, and when representing an object reference, the
   corbaObjectReference object class would also need to be present in
   the entry.  corbaContainer is not required when a subclass of
   corbaObject (such as corbaObjectReference) is mixed in with another
   structural object class.

   The definitions for the object classes corbaObject,
   corbaObjectReference, and corbaContainer are presented in Section 4.

   The corbaObject class has two optional attributes: corbaRepositoryId
   and description.  corbaRepositoryId is a multivalued attribute that
   is used to store the repository ids of the interfaces implemented by
   a CORBA object.  description is used to store a textual description
   of a CORBA object.




Ryan, et al.                 Informational