System and method for filtering XML documents with XPath expressions

摘要

A system for, and method of, filtering an XML document with XPath expressions and a selective data dissemination system incorporating the system or the method. In one embodiment, the filtering system includes: (1) a tree builder that builds a document data tree for the XML document and an XPath expression tree based on substrings in the XPath expressions and (2) a tree prober, associated with the tree builder, that employs the XPath expression tree to probe the document data tree and obtain matches with the substrings.