Synonyms
Event connection; Event pathway; Event topic
Definition
An event channel is a routing node in the event processing network that receives events from event sources and event processing agents, and route them to event sinks and event processing agents.
Key Points
An event channel [2] is the main routing vehicle in the event processing network; it is being used to enable loosely coupled architecture, in which the event producer and event consumer does not have any dependency among them [1]. An event channel receives an event (in push or pull) from an event source or from an event processing agent, and makes routing decisions. The routing decision may be of several types:
- 1.
Itinerary based routing: the consumers are explicitly specified within the event content.
- 2.
Subscription based routing: using a “callback” protocol, the consumer subscribes to events on the channel.
- 3.
Intelligent routing: a decision process is activated to decide on the event consumers.
- 4.
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Crowcroft J. Channel islands in a reflective ocean: large scale event distribution in heterogeneous networks. In: Proceedings of 2nd International IFIP-TC6 Networking Conference; 2002. p. 1–9.
Luckham D, Schutle R, editors. EPTS event processing glossary version 1.1. http://complexevents.com/?p = 409
Sharon G, Etzion O. Event processing network: model and implementation. IBM Syst J. 2008;47(2):321–34.
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Etzion, O. (2018). Event Channel. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_588
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DOI: https://doi.org/10.1007/978-1-4614-8265-9_588
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