Mattew,
What did you mean by "position offset"? If you meant position, each member
in FieldTermStack should have it. Please see the legend in the bottom line of
step 2.
koji
--
http://www.rondhuit.com/en/
(11/06/07 5:28), Mattew Johnstein wrote:
Koji,
Thanks for the tip. By using the FieldTermStack and
FieldPhraseList(fieldFragList.fragInfos) I was able to extract the startOffset
and endOffset of a particular Phrase query. However, I am trying to get the
position offset. How could we get that?
Mattew
________________________________
From: Koji Sekiguchi<k...@r.email.ne.jp>
To: general@lucene.apache.org
Sent: Sunday, June 5, 2011 3:17 AM
Subject: Re: Position offsets for Phrase queries
(11/06/05 7:08), Mattew Johnstein wrote:
Hi all,
I am trying to figure out how Lucene gets the offset positionsinformation for
Phrase/MultiPhrase queries when it is doing the highlighting with
"hl.useFastVectorHighlighter=true" .
I know that using FVH, Lucene is able to get the term positions of the termSet from the
TermVectorComponent. But for phrase queries how does Lucene get the offset position of
only the "exact phrase" match?
Mattew,
I'm not sure this is the answer you wanted, but look at:
https://builds.apache.org//job/Lucene-trunk/javadoc/contrib-highlighter/org/apache/lucene/search/vectorhighlight/package-summary.html#package_description
FVH constructs QueryPhraseMap from user query and FieldTermStack from
TermFreqVector info in the index.
koji
