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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2912) remove field param from computeNorm, scorePayload ; remove UOE'd lengthNorm, switch SweetSpot to per-field
Date Wed, 09 Feb 2011 18:53:03 GMT
remove field param from computeNorm, scorePayload ; remove UOE'd lengthNorm, switch SweetSpot
to per-field 
-----------------------------------------------------------------------------------------------------------

                 Key: LUCENE-2912
                 URL: https://issues.apache.org/jira/browse/LUCENE-2912
             Project: Lucene - Java
          Issue Type: Improvement
            Reporter: Robert Muir
             Fix For: 4.0


In LUCENE-2236 we switched sim to per field (SimilarityProvider returns a per-field similarity).

But we didn't completely cleanup there... I think we should now do this:
* SweetSpotSimilarity loses all its hashmaps. Instead, just configure one per field and return
it in your SimilarityProvider. this means for example, all its TF factors can now be configured
per-field too, not just the length normalization factors.
* computeNorm and scorePayload lose their field parameter, as its redundant and confusing.
* the UOE'd obselete lengthNorm is removed. I also updated javadocs that were pointing to
it (this is bad!).



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