ERMI

ERMI (Event Remote Method Invocation) is a distributed object technology that constructs on top of publish/subscribe event systems. This approach provides innovative benefits like object mobility, object replication, distributed interception, system reflection, object discovery and high performance asynchronous one-to-many notification.

This design decision implies modelling method calls as events and subscriptions over the underlying messaging middleware. We justify this approach because of the clear benefits and synergies obtained with the combination of both conceptual models:

• For object middleware developers, the main advantages derive from the decoupled nature of the MOM layer. This decoupled nature fuels innovative services like object mobility, object replication, asynchronous one-to-many notification, object discovery and system reflection.
• For MOM middleware developers, the main advantage resides in the higher-level abstraction obtained by using object middleware and method calls. Low-level event programming and message protocols are thus handled by the middleware (object stubs and skeletons).
  

See also DERMI (Decentralized ERMI) and CBUS (Connection bus).

Release

Distribution

License

ERMI is available under a LGPL-like license.

Author

• Pedro García López, PhD
• Carles Pairot, PhD Student
• Ruben Mondejar, Master Thesis Student

Department of Computer Engineering and Mathematics (DEIM)
Campus Sescelades
Avinguda dels països catalans, 26
43007 Tarragona, Spain
+34 977 558 510 (tel. direct)
+34 977 559 710 (fax)
pgarcia@etse.urv.es

Publications

Pedro García, Carles Pairot, Antonio G. Skarmeta. "Event-Based Object Middleware: Towards a connection bus for distributed components".

Download

Release ERMI Beta 1 (with JSDT, Elvin, or JMS)

Release ERMI-CBUS Alpha 1 (with Connection bus)