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Date: Wed, 9 Feb 2011 18:54:58 +0000 (UTC)
From: "Robert Muir (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] Updated: (LUCENE-2912) remove field param from computeNorm,
 scorePayload ; remove UOE'd lengthNorm, switch SweetSpot to per-field
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     [ https://issues.apache.org/jira/browse/LUCENE-2912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir updated LUCENE-2912:
--------------------------------

    Attachment: LUCENE-2912.patch

Attached is an initial patch, all tests pass.


> 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
>
>         Attachments: LUCENE-2912.patch
>
>
> 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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