I don't know why the termDocs option did not work for you. Perhaps you did
not (re)open the searcher after the index was populated? Anyhow, here is a
small code snippet that does just this, see if it works for you, then you
can compare it to your code...
void numberOfTermOcc() throws Exception {
System.out.println("======== populate index");
RAMDirectory dir = new RAMDirectory();
IndexWriter iw = new IndexWriter(dir,
new StandardAnalyzer(),true);
for (int i = 0; i < 10; i++) {
Document doc = new Document();
for (int j = 0; j < 10; j++) {
doc.add(new Field("field_"+(i+j), "value_"+(i+j),
Field.Store.NO, Field.Index.TOKENIZED));
doc.add(new Field("field_"+(i+j), "value_"+(i+j),
Field.Store.NO, Field.Index.TOKENIZED));
doc.add(new Field("field_"+(i+j), "value_"+(i+j+1),
Field.Store.NO, Field.Index.TOKENIZED));
}
iw.addDocument(doc);
}
iw.close();
IndexReader ir = IndexReader.open(dir);
printTermDocs(ir, new Term("field_7","value_7"));
printTermDocs(ir, new Term("field_7","value_8"));
}
void printTermDocs(IndexReader ir, Term t) throws IOException {
System.out.println("========= iterate docs for "+t);
TermDocs td = ir.termDocs(t);
while (td.next()) {
System.out.println("term frequency in doc "+td.doc()+
" is: "+ td.freq());
};
}
"beatriz ramos" <[EMAIL PROTECTED]> wrote on 24/10/2006
02:24:47:
> Hi, thanks for all your answers, but they don't work
>
> I have tried the 3 options and with all of them we get termDoc = 0
> I have checked my index with Luke software and termDoc is 1 here, so my
> index is correct.
>
> is it possible I have a problem with the reader? (because my index is
> allright)
>
> Thanks
>
> (when I talk about termDocs, it means number of documents in which term
> appears)
>
>
>
> On 24/10/06, Grant Ingersoll <[EMAIL PROTECTED]> wrote:
> >
> > You can also use Term Vectors, at the cost of extra storage. Search
> > this list for Term Vectors for info on how to implement.
> >
> > On Oct 23, 2006, at 5:50 AM, beatriz ramos wrote:
> >
> > > Hello,
> > > I´m working with Lucene. I need to get the number of occurrences of
> > > the term
> > > in the document. I had seen the documentations ant I don´t find
> > > anything.
> > > Do you have any idea?
> > > Thanks.
> >
> > --------------------------
> > Grant Ingersoll
> > Sr. Software Engineer
> > Center for Natural Language Processing
> > Syracuse University
> > 335 Hinds Hall
> > Syracuse, NY 13244
> > http://www.cnlp.org
> >
> >
> >
> >
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> >
> >
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