Hi Martin: I just started a wiki on this: http://browseengine.pbwiki.com/
Has references to the source code. I have written a solr plugin, but it depends on SOLR-243. The implmentation is different from the solr facetted search implementation. Look at the demo: http://www.browseengine.com/democar/demo-car.html it exhibts dynamic range calculation. Thanks -John On 6/27/07, Martin Grotzke <[EMAIL PROTECTED]> wrote:
On Tue, 2007-06-26 at 19:53 -0700, John Wang wrote: > www.browseengine.com has facet search that handles this. You are calculating range facets dynamically? Do you have any code I can have a look at? I had a look at c.b.solr. BoboRequestHandler, but this does not seem to calculate ranges. Cheers, Martin > > We are working on a solr plugin. > > -John > > On 6/26/07, Mike Klaas <[EMAIL PROTECTED]> wrote: > > > > On 26-Jun-07, at 3:01 PM, Martin Grotzke wrote: > > > AFAICS I do not have the possibility to specify range queries in my > > > application, as I do not have a clue what's the lowest and highest > > > price in the search result and what are "good" ranges according > > > to the (statistical) distribution of prices in the search result. > > > > > > So if it would be possible to go over each item in the search result > > > I could check the price field and define my ranges for the specific > > > query on solr side and return the price ranges as a facet. > > > > > > Has anybody done s.th. like this before, or is there s.th. that I'm > > > missing and why this approach does not make sense at all? > > > > > > Otherwise, what would be a good starting point to plug in such > > > functionality into solr? > > > > Easy: facet based on fixed ranges (say, every 10 dollars for x < 100, > > 100 dollars for x < 1000, etc)., and combine them sensically on the > > client-side. Requires no solr-side modification. > > > > A bit harder: define your own request handler that loops over the > > documents after a search and samples the values of (say) the first 20 > > docs (or more, but be sure to use the FieldCache if so). Calculate > > your range queries, facets (code will be almost identical to the code > > in the builtin request handlers), and return the results. > > > > cheers, > > -Mike > > -- Martin Grotzke http://www.javakaffee.de/blog/
