Mercurial Hosting > luan
diff lucene/src/luan/modules/lucene/Lucene.luan @ 257:c5c60eca33dd
allow Lucene search for 0 rows
git-svn-id: https://luan-java.googlecode.com/svn/trunk@258 21e917c8-12df-6dd8-5cb6-c86387c605b9
| author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
|---|---|
| date | Tue, 28 Oct 2014 03:05:37 +0000 |
| parents | ef39bc4d3f70 |
| children | 9e0d4452e649 |
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--- a/lucene/src/luan/modules/lucene/Lucene.luan Tue Oct 28 01:59:35 2014 +0000 +++ b/lucene/src/luan/modules/lucene/Lucene.luan Tue Oct 28 03:05:37 2014 +0000 @@ -17,15 +17,25 @@ end ) end - function index.get_document(query) + function index.get_first(query, sort) return index.Searcher( function(searcher) - local results, _, total_hits = searcher.search(query,1) - if total_hits == 0 then - return nil - elseif total_hits > 1 then - error( "found " .. total_hits .. " documents" ) - end - return results() + local results, _, total_hits = searcher.search(query,1,sort) + return results(), total_hits + end ) + end + + function index.get_document(query) + local doc, total_hits = index.get_first(query); + if total_hits > 1 then + error( "found " .. total_hits .. " documents" ) + end + return doc + end + + function index.count(query) + return index.Searcher( function(searcher) + local _, _, total_hits = searcher.search(query,0) + return total_hits end ) end