sunspot (rubygems):     Sunspot is a library providing a powerful, all-ruby API for the Solr search engine. Sunspot manages the configuration of persistent     Ruby classes for search and indexing and exposes Solr's most powerful features through a collection of DSLs. Complex search operations     can be performed without hand-writing any boolean queries or building Solr parameters by hand. 
Keywords: ruby|solr|solr-search-engine|sunspot