A Method for XQuery Transform Implementation Based on Shadow Mechanism.


A Method for XQuery Transform Implementation Based on Shadow Mechanism.

Authors

Rekouts M., Grinev M., Boldakov A.

Abstract

The XQuery Update Facility has been recently published by the World Wide Web Consortium as a working draft. Among other features, the working draft presents a novel powerful transform expression. A transform expression creates a new modified copy of an XML subtree, where the modifications are specified as update operations. In this paper we investigate the use of transform expressions and provide a method to support transform expressions efficiently: the method avoids copying of the whole modified XML subtree. Our method is based on the idea of shadow mechanism proposed in early work on recovery.

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Edition

DEXA 2006 Workshop XANTEC'2006.

Research Group

Information Systems

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