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 Acknowledgement
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 Abstract
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Title: Event history processing in an active distributed objects system
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Permanent Link: http://ufdc.ufl.edu/UF00101374/00001
 Material Information
Title: Event history processing in an active distributed objects system
Physical Description: viii, 73 leaves : ill. ; 29 cm.
Language: English
Creator: Raghavan, Harini ( Dissertant )
Lam, Herman ( Thesis advisor )
Su, Stanley Y. W. ( Reviewer )
Hammer, Joachim ( Reviewer )
Publisher: Department of Computer and Information Science and Engineering, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 1999
Copyright Date: 1999
 Subjects
Subjects / Keywords: Computer and Information Science and Engineering thesis, M.S
Object oriented databases   ( lcsh )
Object oriented programming (Computer science)   ( lcsh )
Rule based programming   ( lcsh )
Dissertations, Academic -- UF -- Computer and Information Science and Engineering
Genre: bibliography   ( marcgt )
theses   ( marcgt )
 Notes
Abstract: An Active Distributed Objects System (ADOS) has been developed which incorporates the “active” capabilities from the active database. In the same way that ECA rules can make a database system "active", the event-driven rule technology can make a distributed objects system active through rule-based interoperability. This thesis describes the design and implementation of an Event History Processor to support an ADOS. The Event History Processor allows the specification and processing of composite events within an active distributed objects environment. Composite events are complex event expressions formed by combining primitive events using temporal and logical operators to specify meaningful preconditions for firing rules and taking actions. In this work, a grammar for composite event expressions has been defined. In the Event History Processor, these expressions are converted into event graphs for their evaluation. To support different types of requirements, the event graphs are evaluated based on different parameter contexts. To improve performance, the relevant event graphs are evaluated, as different threads in parallel. Furthermore, the events are stored in a History Database and Logs for subsequent analysis and to enable recovery from system crashes.
General Note: Typescript.
General Note: Vita.
General Note: Thesis (M.S.)--University of Florida, 1999.
General Note: Includes bibliographical references (leaves 69-72).
 Record Information
Bibliographic ID: UF00101374
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: aleph - 002486293

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Table of Contents
    Title Page
        Page i
    Acknowledgement
        Page ii
    Table of Contents
        Page iii
        Page iv
        Page v
    Abstract
        Page vi
        Page vii
    Main
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        Page 2
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