I would imagine there is a library to set up an autocomplete search with Solr. Does anyone have any suggestions? Scriptaculous has a JavaScript autocomplete library. However, the server must return an unordered list.
Solr does not provide an autocomplete UI, but it can return JSON that a JS library can use to populate an autocomplete.
Depending on you index size/ query speed, you may be fine with a standard faceting prefix filter. If the index is large, you may want to index using the EdgeNGramFilterFactory.
Check the last comment in: https://issues.apache.org/jira/browse/SOLR-357 ryan
