Purpose: Provide a Oc4jJGroups transport implementation for the Remote Command Module (RCM).
Description: This class manages a single connection that serves as both external (publishing) and local (receiving) connection. In case topicName is not specified (which is a typical case) the class creates topicName combining a standard prefix with the session's name. This allows to connect instances of the same session running on different servers transparently for the user.