Hi Anna,
The sample I sent is from a modified version of the demo (line 87 in
HTMLDocument of the latest code) that I am preparing for my ApacheCon
talk (which will cover Term Vectors, amongst other things).
At any rate, if you look at the Field constructor for 1.4.3:
|*Field
<http://lucene.apache.org/java/docs/api/org/apache/lucene/document/Field.html#Field%28java.lang.String,%20java.lang.String,%20boolean,%20boolean,%20boolean,%20boolean%29>*(String
<http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html> name,
String
<http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html> string,
boolean store, boolean index, boolean token, boolean storeTermVector)|
(see the Javadocs:
http://lucene.apache.org/java/docs/api/org/apache/lucene/document/Field.html)
or 1.9:
public Field(String name, Reader reader, TermVector termVector)
you can see the last parameter is what controls the addition of
TermVectors. So depending on your code base, change the code in the
demo to add in the new flag (for 1.4.3) or TermVector.YES (for 1.9). You
will have to reindex upon making this change.
Anna Buczak wrote:
You have to tell lucene to store term freq
vectors (it isn't done by default).
This is exactly the part that I do not know how to do. Where to set the
flag ?
I use for indexing org.apache/lucene.demo.IndexFiles.
Do you have at least
one field?
Now I know that Lucene adds three fields by default and one of them is
"contents" - this is the one I am interested in, and at the present time I
can retieve from that field what I want (i.e. this part works).
Anna
Chris Lamprecht wrote:
Can you post the code you're using to create the Document and adding
it to the IndexWriter? You have to tell lucene to store term freq
vectors (it isn't done by default). Also I'm not sure what you mean
when you say your documents do not have fields. Do you have at least
one field?
-chris
On 11/17/05, Anna Buczak <[EMAIL PROTECTED]> wrote:
I have indexed a set of documents that do not have fields. I want to
use the getTermFreqVector method from IndexReader to get the
frequencies. However when I do that as:
TermFreqVector[] z = ir.getTermFreqVectors(0);
z is null. So I can't get the frequency vectors.
Help will be very much appreciated.
Anna
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