Java interface for rdfDB

Date:      Tue, 19 Sep 2000 16:26:29 +0200
From:      Eric van der Vlist <vdv@dyomedea.com>
To:        www-rdf-interest@w3.org
Subject:   Closing the loop with a Java interface for rdfDB.

Hi,

I am happy to announce a Java interface to rdfDB and also an example where RDF is drawn to and from a database.

Disclaimer: To see it working, you'll have to accept reading some French...

I am now producing three complete RDF/RSS 1.0 channels with all the articles available on XMLfr.

These channels are available at: http://xmlfr.org/actualites/xmlfr/channel.rss10,
http://xmlfr.org/actualites/decid/channel.rss10 and
http://xmlfr.org/actualites/tech/channel.rss10.

The articles are written using XMLNews-Story and have enough meta information to generate (through a XSLT transformation) all the items information that you see in these channels.

These 3 channels have been loaded into a rdfDB database which is queried using the JrdfDB published on 4xt to generate dynamic pages available at the same URIs than the one used for the taxonomy.

Some examples are:

http://xmlfr.org/index/object.title/RDF/
http://xmlfr.org/index/object.title/RSS/
http://xmlfr.org/index/person/Rael_Dornfest/
http://xmlfr.org/index/person/Dan_Connolly/.

In the future, I plan to add more information on these pages which include a list of all the articles mentioning the selected "object".

In the examples included on 4xt download section, I have also included an example showing how RDF/RSS channels can be generated from the rdfDB:

input: http://4xt.org/downloads/JrdfDB/2rss.in
xslt: http://4xt.org/downloads/JrdfDB/2rss.xsl
output: http://4xt.org/downloads/JrdfDB/2rss.out

This example is closing the loop, showing how data taken from RSS channels can be exported back as RSS channels.

I hope you'll enjoy it !

Eric

PS: many thanks to Guha for his rdfDB.

Eric van der Vlist       Dyomedea                    http://dyomedea.com
http://xmlfr.org         http://4xt.org              http://ducotede.com

Prepared by Robin Cover for The XML Cover Pages archive.

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