Hi AlexElba, The problem is that Lucene only knows how to handle character strings, not numbers. Lexicographically, "3" > "10", so you get the expected results (nothing).
The standard thing to do is transform your numbers into strings that sort as you want them to. E.g., you can left-pad the "rank" field values with zeroes: "03", "04", ..., "10", and then create a RangeFilter over "03" .. "10". You will of course need to left-zero-pad to at least the maximum character length of the largest rank. Facilities to handle this problem are available in NumberTools: <http://lucene.apache.org/java/2_4_0/api/org/apache/lucene/document/NumberTools.html> (Note that NumberTools converts longs to base-36 fixed-length padded strings.) More info here: <http://wiki.apache.org/lucene-java/SearchNumericalFields> Steve On 01/13/2010 at 12:51 PM, AlexElba wrote: > > Hello, > > I am currently using lucene 2.4 and have document with 3 fields > > id > name > rank > > and have query and filter when I am trying to use rang filter on rank I > am not getting any result back > > RangeFilter rangeFilter = new RangeFilter("rank", "3", "10", true, true); > > I have documents which are in this interval > > > Any suggestion what am I doing wrong? > > Regards --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
