I think I need to lookup the given species value in a taxonomy, build the 'path' and pass the result to the path hierarchy tokenizer or similar. I figure I'll do this with a field analyzer. On 4 Jul 2014 22:30, "Jack Krupansky" <j...@basetechnology.com> wrote:
> I haven't fully digested your species hierarchy requirements, but you can > do just about anything in a Solr update processor. So you can parse the > string and then put pieces into different fields to represent portions of > the hierarchy. Then at query time, your application facet navigation is > simply using the prefix from the facet selection as a filter on one of > those fields in which the various hierarchy components are stored. > > Alternatively, you may be able to get by using the path hierarchy > tokenizer: > http://lucene.apache.org/core/4_0_0/analyzers-common/org/ > apache/lucene/analysis/path/PathHierarchyTokenizerFactory.html > > Or maybe a combination of the two approaches. > > I think I have some examples of it in my e-book. > > -- Jack Krupansky > > -----Original Message----- From: Dan Bolser > Sent: Friday, July 4, 2014 11:57 AM > To: solr-user > Subject: Re: Field for 'species' data? > > The problem is that each document has a single species (or > super-species, or sub-species), and needs to get information about > it's place in the hierarchy 'elsewhere', i.e. in an externally encoded > hierarchy. > > I don't, for example, have data in this format: > SPECIES: "Hordeum / Hordeum vulgare / Hordeum vulgare var. hybernum" > > but rather > SPECIES: "Hordeum vulgare". > > How can I add in that data at analysis time? > > > Cheers, > Dan. > > > On 4 July 2014 04:19, Gora Mohanty <g...@mimirtech.com> wrote: > >> On 3 July 2014 21:40, Dan Bolser <dbol...@ebi.ac.uk> wrote: >> >>> >>> Hi, >>> >>> Does anyone on the list have experience with hierarchical facets, >>> specifically for species data? >>> >> [...] >> >> Maybe not specifically for species data, but hierarchical faceting works >> pretty well with Solr. Please see >> http://wiki.apache.org/solr/HierarchicalFaceting >> For your use case, I would probably use pivot facets: >> http://wiki.apache.org/solr/HierarchicalFaceting#Pivot_Facets >> >> Regards, >> Gora >> > >
