: Rephrasing: I do realize that I would be able to "flatten" my Lucene : Query-object to its String-representation and possibly use that as a query : input to SolrQuery. But would that work for all queries ... or is the Lucene : object-representation more expressive (i.e. richer) than the string-rep?
"Query" as an abstract class supports all sorts of concrete subclasses -- not all of which can be expressed as simple strings parsable by a query parser. but that doesn't mean all of the types of queries you currently use can't be expressed as a string -- we'd need more info about what exactly your "rather intricate query" looks like to give you a good answer to that part. In general, anything you can do with Lucene directly can be done with Solr -- if you write a Solr plugin for handling it. you could for example wrote a QParser that takes in whatever input your current code parses and then generates your complex query. -Hoss
