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From Otis Gospodnetic <otis_gospodne...@yahoo.com>
Subject Re: Proper use of Lucene?
Date Thu, 11 Apr 2002 16:25:58 GMT
Or perhaps the problem has to do with Terence Parr mentioned here:
http://www.jguru.com/forums/view.jsp?EID=749636

Maybe he can contribute his enhancement...

Otis


--- Ian Lea <ian@digimem.net> wrote:
> I think you will find this is just a bug that was
> fixed a while ago and your problem will disappear
> if you upgrade.
> 
> 
> --
> Ian.
> ian@digimem.net
> 
> > Armbrust.Daniel@mayo.edu ("Armbrust, Daniel C.") wrote 
> >
> > I want to know if this is supposed to be a legal thing to do with
> lucene:
> > 
> > I indexed some files into index 1 that had fields x, y, and z.
> > 
> > I indexed some files into a index 2 that had fields x, y, q.
> > 
> > I used a multisearcher on the two indexes, and search for things
> like
> > 
> > q:term
> > 
> > So far, this all works.  However, if I search for 
> > 
> > q:ter*
> > 
> > lucene throws an exception.  Specifically:
> > Opening index:
> > /people/medinf1/projects/vocabulary/CNI/test/prototype/index...done
> > Opening index:
> >
> /people/medinf1/projects/vocabulary/CNI/test/prototype/index2...done
> > Enter query: q:mit*
> > java.lang.NullPointerException
> >         at org.apache.lucene.index.SegmentTermEnum.clone(Unknown
> Source)
> >         at org.apache.lucene.index.TermInfosReader.terms(Unknown
> Source)
> >         at org.apache.lucene.index.SegmentReader.terms(Unknown
> Source)
> >         at org.apache.lucene.search.PrefixQuery.getQuery(Unknown
> Source)
> >         at
> org.apache.lucene.search.PrefixQuery.sumOfSquaredWeights(Unknown
> > Source)
> >         at
> org.apache.lucene.search.BooleanQuery.sumOfSquaredWeights(Unknown
> > Source)
> >         at org.apache.lucene.search.Query.scorer(Unknown Source)
> >         at org.apache.lucene.search.IndexSearcher.search(Unknown
> Source)
> >         at org.apache.lucene.search.MultiSearcher.search(Unknown
> Source)
> >         at org.apache.lucene.search.Hits.getMoreDocs(Unknown
> Source)
> >         at org.apache.lucene.search.Hits.<init>(Unknown Source)
> >         at org.apache.lucene.search.Searcher.search(Unknown Source)
> >         at org.apache.lucene.search.Searcher.search(Unknown Source)
> >         at
> >
>
edu.mayo.mir.cni.search.SearchTest.commandLineTest(SearchTest.java:82)
> >         at
> edu.mayo.mir.cni.search.SearchTest.main(SearchTest.java:175)
> > 
> > Should I be able to do this?
> > If so, I'll grab a copy of the newest release of lucene (I'm using
> 1.2 beta
> > 1 now I think) and see if it still happens.  I'll try to write up a
> self
> > contained bug test too, but I'm not sure I'll be able to do that
> for a
> > couple of days.
> > 
> > Thanks, 
> > 
> > Dan
> 
>
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