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
> <manjul...@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:[...@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:[...@80fa6f
>>
>>
>>
>> If some body can pls. help me to get the desired output.
>>
>> Thanx,
>>
>> Manjula.
>>
>
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