Optimization of XPath expressions for evaluation upon streaming XML data
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United States of America Patent
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Issued Date -
Nov 17, 2005
app pub date -
May 17, 2004
filing date -
May 17, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method, information processing system and computer readable medium for processing a full XPath expression for evaluation over streaming XML data is disclosed. The method includes transforming the full XPath expression into an equivalent XPath expression written in a reduced XPath language and transforming context position information in the equivalent XPath expression into an expression for computing the context position information. The method further includes transforming reverse axis information in the equivalent XPath expression into forward axis information, wherein an evaluation of the equivalent XPath expression over streaming XML data is facilitated.
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