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eXist at XML 2007

by wolf at 2007/12/14 at 17:43:17 z

I have not been there myself, but as we heard from those who attended XML 2007, there were quite a few talks mentioning eXist:

Erik Bruchez: XForms and the eXist XML database: a perfect couple

Dan McCreary: Using XForms and eXist to Manage Metadata

Kurt Cagle: Lightweight XML

Mark Birbeck: XForms, XHTML, and RDFa for Internet-Facing Applications

Mark Birbeck: XForms on the Desktop using Sidewinder

The slides for the first two talks are available online. We also heard Norm Walsh mentioned an XProc implementation in XQuery based on eXist (I guess this must be Jim Fuller's XProcXQ). XProc is an interesting new standard and I would love to see a simple implementation which can be easily integrated with eXist.

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  4. 99.4% XQuery Conformance

99.4% XQuery Conformance

by wolf at 2007/12/13 at 20:56:26 z
xqts.png

We just reached another milestone in our struggle to make eXist 100% conformant with the XQuery specs: 99.4%! Details can be found on the official W3C XQuery Test Suite pages.

Recent changes were mostly related to namespace handling, though we also had a number of small fixes to the XQuery parser, including whitespace processing and ordering declarations.

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  4. Understanding the New Indexing Features

Understanding the New Indexing Features

by wolf at 2007/12/03 at 19:26:38 z

The upcoming next release of eXist will introduce quite a few changes with respect to index types and index creation. While your old index configuration should still work with the new version, knowing the new features and possibilities can sometimes result in a dramatic performance boost.

To better understand the changes, we have to look at two different areas of development, which both have direct effects on indexing features:

  1. The switch to a modularized indexing architecture
  2. The new query-rewriting optimizer
Read article ...
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  4. New Wiki Online

New Wiki Online

by wolf at 2007/12/03 at 11:37:22 z

This site is now going public as we are starting to switch the links on the eXist homepage to point to We will try to move all valuable contents from the old wiki into here. This has to be done manually though as the old server is definitely dead. Well, it's a good chance to re-read and evaluate all the old stuff.

The new site will be in a "private beta" mode for now, which means that only selected users can edit entries. We will open registration for other users once we are sure the system is running stable enough.

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  4. AtomicWiki: An Atom-based Wiki

AtomicWiki: An Atom-based Wiki

by wolf at 2007/10/19 at 22:34:12 z

What you can see here is a first live version of AtomicWiki, my XQuery-based Wiki engine. AtomicWiki started as an experiment to create a simple blog on top of eXist's existing Atom support. Eventually, more and more features were added during the past months, so the project has more evolved into a wiki-style system than "just" a weblog.

AtomicWiki is entirely based on the Atom Publishing Protocol and syndication format. All entries are stored as Atom feeds in eXist. We use the Atom Publishing Protocol to create and manipulate feeds and entries. Nearly all the functionality - except one Java function for parsing Wiki markup - is implemented in XQuery with the help of some XSLT and Javascript.

What makes AtomicWiki really powerful though, is its tight integration with XQuery!

Read more about AtomicWiki: