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.
