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Auflistung nach Autor:in "Ritter, Franz"

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  • Konferenzbeitrag
    Event processing on your own database
    (Datenbanksysteme für Business, Technologie und Web (BTW) 2013 - Workshopband, 2013) Glombiewski, Nikolaus; Hoßbach, Bastian; Morgen, Andreas; Ritter, Franz; Seeger, Bernhard
    Event processing (EP) is widely used for reacting on events in the very moment when they occur. Events that require immediate reactions can be found in various applications, e.g. algorithmic trading, business process monitoring and sensorbased human-computer interaction. For the support of EP in an application, a specialpurpose EP system with its own API and query language has to be used. Typically, EP systems as well as their integration in applications are expensive. In this paper, we show how every standard database system can be used as an EP system via JDBC. An experimental evaluation proofs that databases behind JDBC are able to support small and medium-sized EP workloads.
  • Zeitschriftenartikel
    JEPC: The Java Event Processing Connectivity
    (Datenbank-Spektrum: Vol. 13, No. 3, 2013) Hoßbach, Bastian; Glombiewski, Nikolaus; Morgen, Andreas; Ritter, Franz; Seeger, Bernhard
    Today, event processing (EP) is the first choice technology for analyzing massive event streams in a timely manner. EP allows to detect user-defined situations of interest, like in streaming position events for example, in near real-time such that actions can be taken immediately. Unfortunately, each specific EP system has its very own API and query language because there are no standards. The exchange of EP systems as well as their use within a federation is challenging, error-prone, and expensive. To overcome these problems, we introduce the Java Event Processing Connectivity (JEPC) that is a middleware for uniform EP functionality in Java. JEPC provides always the same API and query language for EP completely independent of the EP system beneath. Furthermore, we show in detail how JEPC can integrate database systems besides EP systems and evaluate the performance of EP powered by databases systems.