Hi,
just found a solution, but you have to know, what you want to count:
try {
final SolrIndexSearcher s = rb.req.getSearcher();
final SolrQueryParser qp = new SolrQueryParser(rb.req.getSchema(), null);
final String queryString = "entity_type:RELEASE";
final Query q = qp.parse(queryString);
final DocListAndSet results = s.getDocListAndSet(q, (List<Query>) null, (Sort)
null, rb.req.getStart(), rb.req.getLimit());
final NamedList counts = new NamedList();
for (String fc : ImmutableSet.of("entity_type:RELEASE",
"entity_type:PRODUCT_NAME")) {
counts.add(fc, s.numDocs(qp.parse(fc), results.docSet));
}
// in counts you have your facet-counts
}
catch (ParseException pe) {
pe.printStackTrace();
}
-------- Original-Nachricht --------
> Datum: Thu, 06 Sep 2012 13:58:29 +0200
> Von: "Ralf Heyde" <ralf.he...@gmx.de>
> An: solr-user@lucene.apache.org
> Betreff: Facetting inside a custom component
> Hello,
>
> i'm currently devoloping a custom component in Solr.
> This component works fine. The problem I have is, I only have an access to
> the searcher which gives me the option to fire e.g. BooleanQueries.
>
> This searcher gives me a result, which I have to iterate to calculate
> informations which could be delivered by solr facets out of the box.
>
> The problem i'm facing with is, that there is no option for facetting.
> There is an example on the Lucene here:
> http://lucene.apache.org/core/4_0_0-BETA/facet/org/apache/lucene/facet/doc-files/userguide.html
>
> The problem is, that i have no taxonomyDir / i dont know, where to get it.
> TaxonomyReader taxo = new DirectoryTaxonomyReader(taxoDir);
>
> Does anybody have an idea, how to gather facet information?
>
> Thanks in advance,
>
> Ralf
