How can I determine the total number of documents in a Solr index using Solrj?
After hours of searching on my own, I actually have an answer (given below); I'm only posting this question so others can find the solution more easily.
Here's what I'm using. Is this canonical? Is there a better way?
SolrQuery q = new SolrQuery("*:*");
q.setRows(0); // don't actually request any data
return server.query(q).getResults().getNumFound();