Introduction to VTD-XML

VTD-XML is a new, open-source, non-validating, non-extractive XML processing API written in Java. VTD-XML is a good alternative to Simple API for XML (SAX) and Document Object Model (DOM), as it does not force you to trade processing performance for usability.

http://java.dzone.com/articles/introduction-vtd-xml

VTD-XML 2.7 is out

 VTD-XML 2.7 is released and can be downloaded at

http://sourceforge.net/projects/vtd-xml/files/.

Below is a summary of what are the new features and enhancements.

Expanded VTD-XML’s Core API

• VTDNav: toStringUpperCase, toStringLowerCase, contains(), endsWith(),
  startsWith()
• Extended VTD added in-memory buffer support

Improved Xpath

• Added the following XPath 2.0 functions: abs(), ends-with(), upper-case(),
  lower-case()
• Added support for variable reference * significantly enhanced XPath
  syntax, checking error reporting (Special thanks to Mark Swanson)
• Internal performance tuning Bug fixes and

Code Enhancement

• C version significantly removed warning message, fix memory leak during
  Xpath expression parsing,
• Various bug fies (Special thanks to Jon Roberts, John Zhu, Matej Spiller,
  Steve Polson, and Romain La Tellier)

Does That Look 100x?

I came across an interesting open source project called XCF (standing for XML Communication Framework), and it has benchmarked VTD-XML vs XOM, Xerces DOM and Xerces SAX, and some binary data format. The results consistently show that VTD-XML is not just faster, but faster by a huge margin. In fact, any performance sensitive XML applications without using VTD-XML is pretty much unusable. That kind of makes you wonder what kind of performance one gets from buying all those expensive Progress, Oracle and IBM ESBs. 

For the complete test analysis and results, please visit

https://code.ai.techfak.uni-bielefeld.de/trac/xcf/wiki/Evaluation

VTD-XML Blog is back!!

For some mysterious reasons, vtd-xml’s original blog just got pulled by google. But now it is back in full force. Stay Tuned. There will be a lot of articles on VTD-XML coming.

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