RMI (Remote Method Invocation) is an architecture that allows clients to invoke methods on remote machines. Rifidi uses this architecture to allow the IDE (and the Tag Streamer) to communicate with the reader. It uses the cajo library to provide the RMI functionality.

Purpose of RMI Architecture

The basic goal of implementing RMI in Rifidi is so that one client (i.e. the IDE or Tag Streamer) can transparently control multiple readers on different machines, if need be. This enables a distributed architecture that will allow rifidi to drive performance testing of edge servers, because multiple machines can run rifidi readers, thus distributing the load across a network of computer. At the same time, however, it should be easy to start up one or two readers on a local machine for compatibility testing or to simply experiment with a reader.

A figure depicting the purpose of RMI in Rifidi

Class Diagram

A UML Class Diagram depicting the components of the RMI Architecture in Rifidi

Reference Client