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From "Henry Story (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLEREZZA-317) add support for XSPARQL
Date Wed, 13 Apr 2011 17:03:05 GMT

    [ https://issues.apache.org/jira/browse/CLEREZZA-317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13019432#comment-13019432
] 

Henry Story commented on CLEREZZA-317:
--------------------------------------

XSPARQL has been released open source 
http://lists.w3.org/Archives/Public/public-lod/2011Apr/0211.html

We are happy to announce the open source release of our Java implementation of the XSPARQL
language [1]. XSPARQL allows to write queries to transform data between XML and RDF in an
intuitive manner, combining SPARQL and XQuery in a common language.

The new open source version provides a cleaner, more stable reimplementation of the XSPARQL
language than our first version, now fully implemented in Java. The new implementation can
be downloaded from the Sourceforge project page [2], install instructions can be found on
the XSPARQL homepage [3].

The new technical report [4] gives more extensive description together with a formal semantics
and empirical results.

We appreciate your feedback/comments/questions to be sent to our  mailing list [5].

The XSPARQL team

[1] W3C Member Submission http://xsparql.deri.org/spec/
[2] Project Page http://sourceforge.net/projects/xsparql/
[3] http://xsparql.deri.org/
[4] "Mapping between RDF and XML with XSPARQL" http://www.deri.ie/fileadmin/documents/DERI-TR-2011-04-04.pdf
[5] Mailinglist xsparql-discussion@lists.sourceforge.net

> add support for XSPARQL
> -----------------------
>
>                 Key: CLEREZZA-317
>                 URL: https://issues.apache.org/jira/browse/CLEREZZA-317
>             Project: Clerezza
>          Issue Type: New Feature
>         Environment: all
>            Reporter: Henry Story
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> XSPARQL [1] is the RDF equivalent of XQuery, and is in fact built on top of XQuery usually.

> It can be used to create XML from rdf stores using SPARQL like queries (called lowering)
and transform XML into RDF (called lifting).
> This could be used for two purposes in Clerezza:
> 1. Lowering: for generating XHTML or other XML formats
>     this would be in addition to Scala Server Pages.  Some things that could be done
more easily than in SSP is get information from different graphs. 
> 2. Lifting: for transforming XML into RDF
>    This is where XSPARQL is really without equivalent. This can help write transforms
for any XML format into RDF for the store, making it much
> easier to build integrating layers with existing web services
> The DERI Team in Galway has just published the java code [2].
> [1] http://xsparql.deri.org/spec/lang
> [2] http://sourceforge.net/mailarchive/forum.php?thread_name=D3AFEAF5-9540-46A9-8815-80A1F9C067DB%40deri.org&forum_name=xsparql-discussion

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