Diploma Thesis, TU-Vienna, 2008

Developing distributed applications is a difficult process. Several issues like synchronization, coordination or scalability have to be considered. Middleware systems are able to deal with several of those issues and enable faster and easier development. The space-based computing paradigm describes an approach to realize next generation middleware systems. The goal of this work is to describe mechanisms for next generation middlewares by means of the eXtensible Virtual Shared Memory (XVSM) protocol. Therefore it describes the semantics and the benefits of these mechanisms, especially concentrating on the issues of timeouts, aspects and notifications. This work also describes the implementation of these features within MozartSpaces, the Java reference implementation of XVSM, in detail.