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https://issues.apache.org/jira/browse/LUCENE-3208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-3208:
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Attachment: LUCENE-3208-3x.patch
Thanks to Robert for helping me to find the bug in TestSimilaroity. It was
caused by a copypaste error when nuking Searcher. Searcher.java and also
IndexSearcher.java had a private similarity field and separate setters. Methods
implemented by Searcher would therefore not see changes on Similarity done on
the IndexSearcher.
> Move Query.weight() to IndexSearcher as protected method
> --------------------------------------------------------
>
> Key: LUCENE-3208
> URL: https://issues.apache.org/jira/browse/LUCENE-3208
> Project: Lucene - Java
> Issue Type: Bug
> Components: core/search
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: 3.3, 4.0
>
> Attachments: LUCENE-3208-3x.patch, LUCENE-3208-3x.patch,
> LUCENE-3208-LTC.patch, LUCENE-3208.patch, LUCENE-3208.patch, LUCENE-3208.patch
>
>
> We had this issue several times, latest in LUCENE-3207.
> The method Query.weight() was left in Query for backwards reasons in Lucene
> 2.9 when we changed Weight class. This method is only to be called on
> top-level queries - and this is done by IndexSearcher. This method is just a
> utility method, that has nothing to do with the query itsself (it just
> combines the createWeight method and calls the normalization afterwards).
> The problem we have is that any query that wraps other queries (like
> CustomScore, ConstantScore, Boolean) calls Query.weight() instead of
> Query.createWeight(), it will do normalization two times, leading to strange
> bugs.
> For 3.3 I will make Query.weight() simply delegate to IndexSearcher's
> replacement method with a big deprecation warning, so user sees this. In
> IndexSearcher itsself the method will be protected to only be called by
> itsself or subclasses of IndexSearcher. Delegation for backwards is no
> problem, as protected is accessible by classes in same package.
> I would suggest the method name to be
> IndexSearcher.createNormalizedWeight(Query q)
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