: I'm not sure if I get what you are trying to achieve. What do you mean : by "constraint"?
"constraint" it fairly standard terminology when refering to facets, it's used extensively in our facet docs and is even listed on solr's glossary page (allthough not specificyly in hte context of faceting since it can be used more broadly then that)... http://wiki.apache.org/solr/SolrTerminology In a nutshell: A facet is a way of classifying objects A constraint is a viable way of limiting a set of objects faceted search is a search where feedback on viable constraints (usually in the form of counts) is provided for each facet. (ie: "facet counts" or "constraint counts" ... the terms are both used relatively loosely) : > I'm trying to use facet's via widget's within Ajax-Solr. I have tried the : > wiki for general help on configuring facets and constraints and also : > attended the recent Lucidworks webinar on faceted search. Can anyone : > please direct me to some reading on how to formally configure facets for : > searching. the beauty of faceting in solr is that it doesn't have ot be formally configured -- you can specify it all at query time using request params as long as the data is indexed... http://wiki.apache.org/solr/SolrFacetingOverview http://wiki.apache.org/solr/SimpleFacetParameters : > Topics < field : > Legislation < constraint : > Guidance/Policies < constraint : > Customer Service information/complaints procedure < constraint : > financial information < constraint if you index a "Topic" field, and the topic field contains those field values as indexed terms, then you will get those constraints back using "facet.field=Topics" -Hoss