Streaming XPath evaluation

Question

Are there any production-ready libraries for streaming XPath expressions evaluation against provided xml-document? My investigations show that most of existing solutions load entire DOM-tree into memory before evaluating xpath expression.

Answer 1

XSLT 3.0 provides streaming mode of processing and this will become a standard with the XSLT 3.0 W3C specification becoming a W3C Recommendation.

At the time of writing this answer (May, 2011) Saxon provides some support for XSLT 3.0 streaming .