Hi,
What are you intending to do? The example code is lost! In general, to sort alphanumeric/lexical on a human readable field, you would use the collation functionalities (needs a separate field for sorting containing the collation keys) provided by Lucene. Use http://lucene.apache.org/core/4_5_1/analyzers-common/org/apache/lucene/collation/CollationKeyAnalyzer.html to index the field and then you can do a simple native sort on this field (SortField.STRING). Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen <http://www.thetaphi.de/> http://www.thetaphi.de eMail: u...@thetaphi.de From: Umashanker, Srividhya [mailto:srividhya.umashan...@hp.com] Sent: Tuesday, November 12, 2013 5:00 AM To: java-user@lucene.apache.org Subject: Alphanumeric Field Comparison : Lucene 4.5 Group – We are looking at sorting lucene doc’s based on a field in alphanumeric order, as we expect fields to have Alpha numeric characters. Attached is the AlphaNumericFieldComparatorSource and below is the snippet of its usage. final SortField sortField_id = new SortField(FieldName._id.name(), new AlphaNumericFieldComparatorSource(), false); Is anyone using an easier approach or please share other alternatives that you have tried. Thanks! -Vidhya
