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From AlisonCallahan <alison.calla...@gmail.com>
Subject RE: PrefixQuery returning 0 results
Date Wed, 17 Feb 2010 16:17:54 GMT

Originally "subject" was indexed with ANALYZED ... I changed it to
NOT_ANALYZED (there was no "keyword" option for indexing in Lucene 3.0.0),
and I am still having the same problem.

Thanks,

Alison Callahan


Uwe Schindler wrote:
> 
> How is "subject indexed"?
> 
> I fit is indexed with ANALYZED not as keyword only, StandardAnalyzer will
> remove <, lowercase and so on.
> 
> -----
> Uwe Schindler
> H.-H.-Meier-Allee 63, D-28213 Bremen
> http://www.thetaphi.de
> eMail: uwe@thetaphi.de
> 
> 
>> -----Original Message-----
>> From: AlisonCallahan [mailto:alison.callahan@gmail.com]
>> Sent: Wednesday, February 17, 2010 4:39 PM
>> To: java-user@lucene.apache.org
>> Subject: PrefixQuery returning 0 results
>> 
>> 
>> I have indexed RDF in N-triple format (with three fields -- "subject",
>> "predicate", "object") and now am trying to query the index with a
>> PrefixQuery on the "subject" field. My test case is to get back all
>> documents whose subject field starts with the prefix "<http", and I
>> would
>> expect to get back all documents. Instead, the PrefixQuery returns 0
>> documents. I have read and can't see why the PrefixQuery is returning 0
>> results.
>> 
>> Here is the relevant code:
>> 
>> 	IndexReader n3reader = IndexReader.open(FSDirectory.open(new
>> File(index)),
>> true);
>> 	Searcher searcher = new IndexSearcher(n3reader);
>> 	Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT);
>> 
>> 	String test = "<http";
>> 
>> 	Query nsQuery = new PrefixQuery(new Term("subject", test));
>> 
>> 	TopDocs hits = searcher.search(nsQuery, 10);
>> 
>> 	System.out.println("Hits: "+hits.totalHits);
>> 
>> This code prints out '0' hits ... Any suggestions for why this isn't
>> working?? Thanks,
>> 
>> Alison Callahan
>> --
>> View this message in context: http://old.nabble.com/PrefixQuery-
>> returning-0-results-tp27625646p27625646.html
>> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>> 
>> 
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> 
> 
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> 

-- 
View this message in context: http://old.nabble.com/PrefixQuery-returning-0-results-tp27625646p27626268.html
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