On Jan 13, 2005, at 5:03 AM, Bertrand VENZAL wrote:
Hi all,
Im quite new in this mailing list. I ve many difficulties to find the
number of a word (occurence) in a document, I need to use indexSearcher
because of the query but the score returning is not wot i m looking for.
I found in the mailing List the class TermDoc but it seems to work only
with indexReader.
If anyone can give a hand of this one, I will appreciate ...
Perhaps this technique is what you're looking for.... set the field(s) you're interested in capturing frequency on to be vectored. You'll see that flag as additional overloaded methods on the Field. You'll still need to use an IndexReader, but that is no problem. Construct an IndexReader and use it to construct the IndexSearcher that you'll also use. Here's some snippets of code:
// During indexing, "subject" field was added like this:
doc.add(Field.UnStored("subject", subject, true));... // now during searching...
IndexReader reader = IndexReader.open(directory);
...
// from your Hits, get the document id
int id = hits.doc(i); TermFreqVector vector =
reader.getTermFreqVector(id, "subject");Now read up on the TermFreqVector API to get at the frequency of a specific term.
Erik
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