XJ: facilitating XML processing in Java

  • Authors:
  • Matthew Harren;Mukund Raghavachari;Oded Shmueli;Michael G. Burke;Rajesh Bordawekar;Igor Pechtchanski;Vivek Sarkar

  • Affiliations:
  • University of California, Berkeley, CA;IBM Research, Yorktown Heights, NY;Technion, Haifa, Israel;IBM Research, Yorktown Heights, NY;IBM Research, Yorktown Heights, NY;IBM Research, Yorktown Heights, NY;IBM Research, Yorktown Heights, NY

  • Venue:
  • WWW '05 Proceedings of the 14th international conference on World Wide Web
  • Year:
  • 2005

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Abstract

The increased importance of XML as a data representation format has led to several proposals for facilitating the development of applications that operate on XML data. These proposals range from runtime API-based interfaces to XML-based programming languages. The subject of this paper is XJ, a research language that proposes novel mechanisms for the integration of XML as a first-class construct into Java™. The design goals of XJ distinguish it from past work on integrating XML support into programming languages --- specifically, the XJ design adheres to the XML Schema and XPath standards. Moreover, it supports in-place updates of XML data thereby keeping with the imperative nature of Java. We have built a prototype compiler for XJ, and our preliminary experiments demonstrate that the performance of XJ programs can approach that of traditional low-level API-based interfaces, while providing a higher level of abstraction.