VTD-XML 2.1

VTD-XML is a "non-extractive" XML processing software API implementing Virtual Token Descriptor. Currently, VTD-XML only supports built-in entity references (" &s > <).
Designed to be random-access capable, it attempts to be both high-performance and memory-efficient. In addition, because VTD is inherent persistent, it can be saved on disk along side the XML document to achieve "parse-once, use many times.
" The "non-extractive" nature of VTD means that incremental, dynamic updates dont require re-serialization of irrelevant parts of the original document.
On a 1.5gHz Athlon PC, VTD-XML consistently outperforms SAX parsers with NULL content handler, delivering 25~35 MB/sec sustained throughput, without sacrifice random access. Its memory usage is typical between 1.3x~1.5 x the size of the XML document, with 1 being the XML itself.
Enhancements:
- This version contains a number of features and bugfixes.
- The NodeRecorder class is introduced into all available platforms of VTD-XML.
- In the C# and Java ports, a bug with Unicode characters in XPath expressions was fixed.
- The C version has numerous code clean-ups.