Actually, I haven't used the new stuff yet, so I'm not entirely sure either, but that sure would be the place to start. There's some historical ambiguity, Grouping started out as "Field Collapsing", and they are used interchangeably.
If you go to the bug I linked to and open up the patch file, you'll see the code that implements the grouping in SolrJ, that should give you a good place to start. Best Erick On Wed, Aug 31, 2011 at 3:28 AM, Sowmya V.B. <vbsow...@gmail.com> wrote: > Hi Erick > > I downloaded the latest build from ( > https://builds.apache.org/job/Solr-3.x/lastSuccessfulBuild/artifact/artifacts/ > ) > But, I don't find the required class CollapseComponent in the src. > (org.apache.solr.handler.component.CollapseComponent). > > The SolrJ in 3.4 does seem to have something like GroupResponse, > GroupCommand classes, which might be the ones I am looking for (though I am > not very sure). > > > Regards > Sowmya. > > On Tue, Aug 30, 2011 at 5:14 PM, Erick Erickson > <erickerick...@gmail.com>wrote: > >> Ahhh, see: https://issues.apache.org/jira/browse/SOLR-2637 >> >> Short form: It's in 3.4, not 3.3. >> >> So, your choices are: >> 1> parse the XML yourself >> 2> get a current 3x build (as in one of the nightlys) and use SolrJ there. >> >> Best >> Erick >> >> On Tue, Aug 30, 2011 at 11:09 AM, Sowmya V.B. <vbsow...@gmail.com> wrote: >> > Hi Erick >> > >> > Yes, I did see the XML format. But, I did not understand how to read the >> > response using SolrJ. >> > >> > I found some information about Collapse Component on googling, which >> looks >> > like a normal Solr XML results format. >> > >> http://blog.jteam.nl/2009/10/20/result-grouping-field-collapsing-with-solr/ >> > >> > However, this class CollapseComponent does not seem to exist in Solr >> > 3.3. (org.apache.solr.handler.component.CollapseComponent) >> > was the component mentioned in that link, which is not there in Solr3.3 >> > class files. >> > >> > Sowmya. >> > >> > On Tue, Aug 30, 2011 at 4:48 PM, Erick Erickson <erickerick...@gmail.com >> >wrote: >> > >> >> Have you looked at the XML (or JSON) response format? >> >> You're right, it is different and you have to parse it >> >> differently, there are move levels. Try this query >> >> and you'll see the format (default data set). >> >> >> >> http://localhost:8983/solr/select?q=*:*&group=on&group.field=manu_exact >> >> >> >> >> >> Best >> >> Erick >> >> >> >> On Tue, Aug 30, 2011 at 9:25 AM, Sowmya V.B. <vbsow...@gmail.com> >> wrote: >> >> > Hi All >> >> > >> >> > I am trying to use FieldCollapsing feature in Solr. On the Solr admin >> >> > interface, I give "...&group=true&group.field=fieldA" and I can see >> >> grouped >> >> > results. >> >> > But, I am not able to figure out how to read those results in that >> order >> >> on >> >> > java. >> >> > >> >> > Something like: SolrDocumentList doclist = response.getResults(); >> >> > gives me a set of results, on which I iterate, and get something like >> >> > doclist.get(1).getFieldValue("title") etc. >> >> > >> >> > After grouping, doing the same step throws me error (apparently, >> because >> >> the >> >> > returned xml formats are different too). >> >> > >> >> > How can I read groupValues and thereby other fieldvalues of the >> documents >> >> > inside that group? >> >> > >> >> > S. >> >> > -- >> >> > Sowmya V.B. >> >> > ---------------------------------------------------- >> >> > Losing optimism is blasphemy! >> >> > http://vbsowmya.wordpress.com >> >> > ---------------------------------------------------- >> >> > >> >> >> > >> > >> > >> > -- >> > Sowmya V.B. >> > ---------------------------------------------------- >> > Losing optimism is blasphemy! >> > http://vbsowmya.wordpress.com >> > ---------------------------------------------------- >> > >> > > > > -- > Sowmya V.B. > ---------------------------------------------------- > Losing optimism is blasphemy! > http://vbsowmya.wordpress.com > ---------------------------------------------------- >
