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Event Channel

  • Reference work entry
Encyclopedia of Database Systems

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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. 1.

    Itinerary based routing: the consumers are explicitly specified within the event content.

  2. 2.

    Subscription based routing: using a “callback” protocol, the consumer subscribes to events on the channel.

  3. 3.

    Intelligent routing: a decision process is activated to decide on the event consumers.

    ...

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Recommended Reading

  1. Crowcroft, J. Channel Islands in a Reflective Ocean: Large Scale Event Distribution in Heterogeneous networks. In Proc. 2nd Int. IFIP-TC6 Networking Conf., 2002, pp. 1–9.

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  2. Luckham, D., Schutle, R. (eds). EPTS Event Processing Glossary version 1.1 http://complexevents.com/?p = 409

  3. Sharon, G. Etzion, O. Event processing network: Model and implementation. IBM System Journal, 47(2):321–334, 2008.

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Author information

Authors and Affiliations

  1. IBM Research Labs-Haifa, Haifa, Israel

    Opher Etzion

Authors
  1. Opher Etzion
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Editor information

Editors and Affiliations

  1. College of Computing, Georgia Institute of Technology, 266 Ferst Drive, 30332-0765, Atlanta, GA, USA

    LING LIU (Professor) (Professor)

  2. Database Research Group David R. Cheriton School of Computer Science, University of Waterloo, 200 University Avenue West, N2L 3G1, Waterloo, ON, Canada

    M. TAMER ÖZSU (Professor and Director, University Research Chair) (Professor and Director, University Research Chair)

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© 2009 Springer Science+Business Media, LLC

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Etzion, O. (2009). Event Channel. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_588

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