Querying composite events for reactivity on the web

  • Authors:
  • François Bry;Michael Eckert;Paula-Lavinia Pătrânjan

  • Affiliations:
  • Institute for Informatics, University of Munich, München;Institute for Informatics, University of Munich, München;Institute for Informatics, University of Munich, München

  • Venue:
  • APWeb'06 Proceedings of the 2006 international conference on Advanced Web and Network Technologies, and Applications
  • Year:
  • 2006

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Abstract

Reactivity, the ability to detect events and respond to them automatically through reactive programs, is a key requirement in many present-day information systems. Work on Web Services reflects the need for support of reactivity on a higher abstraction level than just message exchange by HTTP. This article presents the composite event query facilities of the reactive rule-based programming language XChange. Composite events are important in the dynamic world of the Web where applications, or Web Services, that have not been engineered together are composed and have to cooperate by exchanging event messages.