XJ: Integration of XML Processing into Java

The increased importance of XML as a universal data representation format has led to several proposals for enabling 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 JavaTM. 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, and supports in-place updates of XML data thereby keeping with the imperative nature of Java. We have also built a prototype compiler for XJ, and our preliminary experimental results demonstrate that the performance of XJ programs can approach that of traditional low level API-based interfaces, while providing a higher level of abstraction.

By: Matthew Harren, Mukund Raghavachari, Oded Shmueli, Michael Burke, Vivek Sarkar, Rajesh Bordawekar

Published in: RC23007 in 2003


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