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X2QL: An eXtensible XML Query Language Supporting User-Defined Foreign Functions

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Current Issues in Databases and Information Systems (ADBIS 2000, DASFAA 2000)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1884))

Abstract

With the recent and rapid advance of the Internet, management of structured documents such as XML documents and their databases has become more and more important. A number of query languages for XML documents have been proposed up to the present. Some of them enable tag-based powerful document structure manipulation. However, their contents processing capability is very limited. Here, the contents processing implies the similarity-based selection, ranking, summary generation, topic extraction, and so on, as well as simple string-based pattern matching. In this paper, we propose an extensible XML query language X2QL, which features inclusion of user-defined foreign functions to process document contents in the context of XML-QL-based document structure manipulation. This feature makes it possible to integrate application-oriented high-level contents processing facilities into querying documents. We also describe an implementation of an X QL query processing systemon top of XSLT processors.

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Author information

Authors and Affiliations

  1. Doctoral Program in Engineering, University of Tsukuba, Japan

    Norihide Shinagawa

  2. Institute of Information Sciences and Electronics, University of Tsukuba, 1-1-1 Tennohdai, Tsukuba, Ibaraki, 305-8573, Japan

    Hiroyuki Kitagawa & Yoshiharu Ishikawa

Authors
  1. Norihide Shinagawa
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  2. Hiroyuki Kitagawa
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  3. Yoshiharu Ishikawa
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Editor information

Editors and Affiliations

  1. Institute of Computer Science, Academy of Sciences of the Czech Republic, Pod Vodárenskou věží 2, 182 07, Prague 8, Czech Republic

    Július Štuller

  2. Faculty of Mathematics and Physics, Charles University, Malostranské nám. 25, 118 00, Prague 1, Czech Republic

    Jaroslav Pokorný

  3. Computer Science Institute, Brandenburg University of Technology, P.O. Box 101344, 03013, Cottbus, Germany

    Bernhard Thalheim

  4. Faculty of Science, Department of Information Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan

    Yoshifumi Masunaga

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© 2000 Springer-Verlag Berlin Heidelberg

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Shinagawa, N., Kitagawa, H., Ishikawa, Y. (2000). X2QL: An eXtensible XML Query Language Supporting User-Defined Foreign Functions. In: Štuller, J., Pokorný, J., Thalheim, B., Masunaga, Y. (eds) Current Issues in Databases and Information Systems. ADBIS DASFAA 2000 2000. Lecture Notes in Computer Science, vol 1884. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44472-6_20

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  • DOI: https://doi.org/10.1007/3-540-44472-6_20

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-67977-6

  • Online ISBN: 978-3-540-44472-5

  • eBook Packages: Springer Book Archive

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