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From manjula wijewickrema <manjul...@gmail.com>
Subject Re: Problem of getTermFrequencies()
Date Thu, 20 May 2010 08:59:29 GMT
Thanx

On Mon, May 17, 2010 at 10:19 PM, Grant Ingersoll <gsingers@apache.org>wrote:

> Note, depending on your downstream use, you may consider using a
> TermVectorMapper that allows you to construct your own data structures as
> needed.
>
> -Grant
>
> On May 17, 2010, at 3:16 PM, Ian Lea wrote:
>
> > terms and freqs are arrays.  Try terms[i] and freqs[i].
> >
> >
> > --
> > Ian.
> >
> >
> > On Mon, May 17, 2010 at 12:23 PM, manjula wijewickrema
> > <manjula53@gmail.com> wrote:
> >> Hi,
> >>
> >> I wrote a code with a view to display the indexed terms and get their
> term
> >> frequencies of a single document. Although it displys those terms in the
> >> index, it does not give the term frequencies. Instead it displays '
> frequencies
> >> are:[I@80fa6f '. What's the reason for this. The code I have written
> and the
> >> display, can be given as follows.
> >>
> >> Code:
> >>
> >>  *
> >>
> >> import* org.apache.lucene.analysis.standard.StandardAnalyzer;
> >> *
> >>
> >> import* org.apache.lucene.document.Document;
> >> *
> >>
> >> import* org.apache.lucene.document.Field;
> >> *
> >>
> >> import* org.apache.lucene.index.IndexWriter;
> >> *
> >>
> >> import* org.apache.lucene.index.IndexReader;
> >> *
> >>
> >> import* org.apache.lucene.queryParser.ParseException;
> >> *
> >>
> >> import* org.apache.lucene.queryParser.QueryParser;
> >> *
> >>
> >> import* org.apache.lucene.search.*;
> >> *
> >>
> >> import* org.apache.lucene.store.Directory;
> >> *
> >>
> >> import* org.apache.lucene.store.RAMDirectory;
> >> *
> >>
> >> import* org.apache.lucene.util.Version;
> >> *
> >>
> >> import* org.apache.lucene.index.TermFreqVector;
> >>
> >> *
> >>
> >> import* java.io.BufferedReader;
> >> *
> >>
> >> import* java.io.FileReader;
> >> *
> >>
> >> import* java.io.IOException;
> >> *
> >>
> >> import* org.apache.lucene.analysis.StopAnalyzer;
> >> *
> >>
> >> import* org.apache.lucene.analysis.snowball.SnowballAnalyzer;
> >>
> >>
> >> *
> >>
> >> public* *class* Testing{
> >>
> >> *
> >>
> >> public* *static* *void* main(String[] args) *throws* IOException,
> >> ParseException {
> >>
> >> //StandardAnalyzer analyzer = new
> StandardAnalyzer(Version.LUCENE_CURRENT);
> >>
> >> SnowballAnalyzer analyzer = *new* SnowballAnalyzer("English",
> StopAnalyzer.
> >> ENGLISH_STOP_WORDS);
> >>
> >> *try*{
> >>
> >> Directory directory=*new* RAMDirectory();
> >>
> >> IndexWriter w = *new* IndexWriter(directory, analyzer, *true*,
> >>
> >> IndexWriter.MaxFieldLength.*UNLIMITED*);
> >>
> >> Document doc = *new* Document();
> >>
> >> String text="This is a sample codes code for testing lucene's
> capabilities
> >> over lucene term frequencies";
> >>
> >> doc.add(*new* Field("title", text, Field.Store.*YES*,
> Field.Index.*ANALYZED*
> >> ,Field.TermVector.*YES*));
> >>
> >> w.addDocument(doc);
> >>
> >> w.close();
> >>
> >> IndexReader ir=IndexReader.open(directory);
> >>
> >> TermFreqVector[] tfv=ir.getTermFreqVectors(0);
> >>
> >> // for (int xy = 0; xy < tfv.length; xy++) {
> >>
> >> String[] terms = tfv[0].getTerms();
> >>
> >> *int*[] freqs=tfv[0].getTermFrequencies();
> >>
> >> //System.out.println("terms are:"+tfv[xy]);
> >>
> >> //System.out.println("length is:"+terms.length);
> >>
> >> System.*out*.println("array terms are:"+tfv[0]);
> >>
> >> System.*out*.println("terms are:"+terms);
> >>
> >> System.*out*.println("frequencies are:"+freqs);
> >>
> >> // }
> >>
> >>  }*catch*(Exception ex){
> >>
> >> ex.printStackTrace();
> >>
> >> }
> >>
> >> }
> >>
> >> }
> >>
> >>
> >>
> >> Display:
> >>
> >> array terms are:{title: capabl/1, code/2, frequenc/1, lucen/2, over/1,
> >> sampl/1, term/1, test/1}
> >>
> >> terms are:[Ljava.lang.String;@1e13d52
> >>
> >> frequencies are:[I@80fa6f
> >>
> >>
> >>
> >> If some body can pls. help me to get the desired output.
> >>
> >> Thanx,
> >>
> >> Manjula.
> >>
> >
> > ---------------------------------------------------------------------
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> > For additional commands, e-mail: java-user-help@lucene.apache.org
> >
>
>
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>

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