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https://issues.apache.org/jira/browse/LUCENE-857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12487433
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Otis Gospodnetic commented on LUCENE-857:
-----------------------------------------

I think this is where a javadoc and CHANGES.txt come in.  People with serious 
production environments don't just throw new Lucene version on top of the old 
one without carefully reading CHANGES.txt.  I do this every time I upgrade.  If 
one is careless and doesn't read that, then, well...

What you suggested is okay, but I didn't want to deprecate the whole class, 
just remove the caching concern from it, as that's what the CWF is concerned 
with already.  With your suggestion one can't get a raw QueryFilter without 
getting it automatically cached.  Isn't this inflexibility uncool?


> Remove BitSet caching from QueryFilter
> --------------------------------------
>
>                 Key: LUCENE-857
>                 URL: https://issues.apache.org/jira/browse/LUCENE-857
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Otis Gospodnetic
>         Assigned To: Otis Gospodnetic
>            Priority: Minor
>         Attachments: LUCENE-857.patch
>
>
> Since caching is built into the public BitSet bits(IndexReader reader)  
> method, I don't see a way to deprecate that, which means I'll just cut it out 
> and document it in CHANGES.txt.  Anyone who wants QueryFilter caching will be 
> able to get the caching back by wrapping the QueryFilter in the 
> CachingWrapperFilter.

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