- From: Richard Cyganiak <richard@cyganiak.de>
- Date: Fri, 20 Apr 2007 19:11:28 +0200
- To: Semantic Web <semantic-web@w3.org>, jena-dev@yahoogroups.com
- Cc: Chris Bizer <chris@bizer.de>, Jesper Zedlitz <jesper@zedlitz.de>, "Stelios G. Sfakianakis" <ssfak@ics.forth.gr>
Hi all,
We have just released version 0.6 of the Named Graphs API for Jena.
The most prominent changes are to the Semantic Web Client Library
[1]: The client now automatically applies GRDDL transformations to
HTML pages, and follows <link> headers to find additional RDF
documents. This allows the client library to answer queries like the
following against the Web:
# Events that DanC will attend, GRDDLed from his homepage
PREFIX v: <http://www.w3.org/2002/12/cal/icaltzd#>
SELECT ?event ?prop ?value
WHERE {
?event v:attendee <http://www.w3.org/People/Connolly/#me> .
?event ?prop ?value
}
# Friends of the person whose homepage is at
# <http://richard.cyganiak.de/>, found via embedded
# <link> header
SELECT ?friend_name ?friend_homepage WHERE {
?p1 foaf:homepage <http://richard.cyganiak.de/> .
?p1 foaf:knows ?p2 .
?p2 foaf:name ?friend_name .
?p2 foaf:homepage ?friend_homepage .
}
NG4J 0.6 can be downloaded from the NG4J web site [2].
Many thanks to Stelios Sfakianakis and Jesper Zedlitz for their
contributions to this version.
Cheers,
Richard Cyganiak and Chris Bizer
[1] http://sites.wiwiss.fu-berlin.de/suhl/bizer/ng4j/semwebclient/
[2] http://sites.wiwiss.fu-berlin.de/suhl/bizer/ng4j/
Received on Friday, 20 April 2007 17:11:43 UTC