Free High Performance CORBA Notification Service from AT&T Laboratories

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• 4 Oct 2000 - omniNotify 1.0, the initial release, is available.  You can download the release or read the release notes.

What is omniNotify ?

omniNotify is a multi-treaded implementation of the CORBA Notification Service (CosNotification), a feature-enriched version of the CORBA Event Service (CosEvents).   omniNotify offers asynchronous, decoupled, event-based communication between distrubted and heterogeneous applications. 

omniNotify was developed by a group of researchers at AT&T Labs in Florham Park, New Jersey.   Our  main design goal for omniNotify was scalability: we wanted a service that scales well w.r.t. both number of connected consumers and number (and complexity) of filters registered by consumers.  To acheive this goal, the implementation exploits parallelism during filter evaluation and dispatching of events to consumers. 

omniNotify is built on top of OmniORB3, a free high performance C++ CORBA ORB developed by researchers at AT&T Labs in Cambridge, UK.  omniNotify's good performance is due in part to the excellent performance of OmniORB3.

The main features of omniNotify are:

• Implemented in C++.
• Scalable filter evaluation and event dispatching architecture.
• Support for push-based and pull-based event suppliers and consumers.
• Support variants of suppliers/consumers that transmit (per push/pull):
  • a CORBA::Any (a single arbitrary value);
  • a CosNotification::StructuredEvent (a single structured event);
  • a CosNotification::EventBatch (a sequence of structured events).
• Administrative and Notification QoS properties.
• Backward compatible with CosEvents.

See the Features page for an expaned list of features; also see the Release Notes page for a full description of the current release.

See the Keep in Touch page to see how to keep up to date with the latest information about omniNotify and OmniORB.