[siren-user] SIREn Solr Plugin 0.1 Release
renaud.delbru at deri.org
Thu Sep 3 20:32:09 IST 2009
A. Steven Anderson wrote:
> We are planning to release the Solr plugin in October. We first
> need to define a query language that will cover all the features
> of SIREn. One time this query language will be defined, the rest
> will be straightforward.
> Interesting. So, will one still be able to query Solr directly via
> the Solr RESTful API?
This is the original idea of the Solr plugin.
> I'm actually interested in seeing how you define your Solr schema.xml.
It will be pretty simple. You will have to define a SIREn field type
with the SIREn analyzer, and then use the field type for creating SIREn
For the query parser, you will have to register the solr parser plugin
in the solrconfig.xml.
I will update the documentation, and add a Solr demo (with a schema.xml
and solrconfig.xml preconfigured) when the Solr plugin will be released.
> We have been using Solr for several years and now having to integrate
> with a system that would like us to return RDFa. Although, I could
> create a Solr XSL to satisfy our immediate requirement, I was thinking
> that maybe we should revisit our Solr schema to make it a more
> RDF-friendly structure.
Could you develop your idea ?
> So I thought someone must be using Solr to store RDF triples and to my
> surprise, SIREn was the only effort that I found.
There is two others projects that I know. The first one is from
Frederick Giasson . It is not a plugin / extension of Lucene / Solr,
it is more a way to create a Solr schema that partially encodes the RDF
data structure. The second one is a Google Summer of Code project  (I
was co-mentor of the project), but it is not yet stable.
> Using Solr + RDF should be a winning combination, IMHO.
> Consequently, I eagerly await the SIREn Solr release. :-)
We'll do our best to deliver the plugin quickly ;o).
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