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  • From: Wolfgang Hoschek <whoschek AT lbl.gov>
  • To: xom-interest AT lists.ibiblio.org
  • Subject: [XOM-interest] [ANN] nux-1.0beta2 release
  • Date: Sat, 13 Nov 2004 15:05:35 -0800

This is to announce the nux-1.0beta2 release (http://dsd.lbl.gov/nux/).

Nux is a small, straightforward, and surprisingly effective open-source extension of the XOM XML library.

Features include:
• Seamless W3C XQuery and XPath support for XOM, through Saxon.
• Efficient and flexible pools and factories for XQueries, XSL Transforms, as well as Builders that validate against various schema languages, including W3C XML Schemas, DTDs, RELAX NG, Schematron, etc.
• Serialization and deserialization of XOM XML documents to and from an efficient and compact custom binary XML data format (bnux format), without loss or change of any information.
• For simple and complex continuous queries and/or transformations over very large or infinitely long XML input, a convenient streaming path filter API combines full XQuery support with straightforward filtering.
• Glue for integration with JAXB and for queries over
ill-formed HTML.
• Well documented API. Ships in a jar file that weighs just 60
KB.

Changelog:

XOM serialization and deserialization performance is more than good enough for most purposes. However, for particularly stringent performance requirements this release adds "bnux", an option for lightning-fast binary XML serialization and deserialization. Contrasting bnux with XOM:

• Serialization speedup: 2-7 (10-35 MB/s vs. 5 MB/s)
• Deserialization speedup: 4-10 (20-50 MB/s vs. 5 MB/s)
• XML data compression factor: 1.5 - 4

For a detailed discussion and background see http://dsd.lbl.gov/nux/api/nux/xom/binary/BinaryXMLCodec.html

Wolfgang.
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Wolfgang Hoschek
Distributed Systems Department
Berkeley Laboratory
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