I just realised that you can use the "appends" attribute value in the request handler config (of solrconfig.xml). By setting this, any additional fields you add via the solrj API are appended.
Thanks -- View this message in context: http://lucene.472066.n3.nabble.com/How-to-dynamically-add-geo-fields-to-a-query-using-a-request-handler-tp4071655p4080619.html Sent from the Solr - User mailing list archive at Nabble.com.