A SpanQuery is a Query, so if you do a search for it, you will get
scores. However, the mechanism is a bit complicated, b/c actually
getting the Spans is separate from doing the query. I agree there
could be tighter integration. However, what you could do is use
Spans.skipTo to move to the document you are examining in the search
results.
-Grant
On Aug 2, 2009, at 11:30 AM, Eran Sevi wrote:
Hi,
How can I get the score of a span that is the result of
SpanQuery.getSpans()
? The score should can be the same for each document, but if it's
unique per
span, it's even better.
I tried looking for a way to expose this functionality through the
Spans
class but it looks too complicated.
I'm not even sure that by default some score calculation is even
performed
when using span queries.
I've noticed that some calculations are made using payloads and
BoostingTermQuery but the score result is used internally and can't be
accessed from the Spans results.
I don't want to re-run the query again using a HitCollector and
since the
reader is passed to getSpans, I think it should be possible to do
what I
want.
Any help on the correct way to expose the span score will be
appreciated.
Thanks,
Eran.
--------------------------
Grant Ingersoll
http://www.lucidimagination.com/
Search the Lucene ecosystem (Lucene/Solr/Nutch/Mahout/Tika/Droids)
using Solr/Lucene:
http://www.lucidimagination.com/search
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