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https://issues.apache.org/jira/browse/LUCENE-4883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13613729#comment-13613729
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Alan Woodward commented on LUCENE-4883:
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bq. But I assume the plan is to remove aol.search.FieldCache entirely
I wasn't going to initially - just make it package private. But thinking about
it, can we just put a map of fieldnames->XXXDocValues in a threadlocal on
UninvertingFilterReader (like on SegmentCoreReaders)? That makes things a lot
cleaner. We'd need a way to purge the map, though.
bq. Maybe we should make a branch for this
Having just spent an hour or so trying to cut things over, yes, that's probably
a good idea :-) It touches a lot of the codebase. Should simplify things like
SortField a lot though.
> Hide FieldCache behind an UninvertingFilterReader
> -------------------------------------------------
>
> Key: LUCENE-4883
> URL: https://issues.apache.org/jira/browse/LUCENE-4883
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Minor
> Attachments: LUCENE-4883.patch
>
>
> From a discussion on the mailing list:
> {{
> rmuir:
> I think instead FieldCache should actually be completely package
> private and hidden behind a UninvertingFilterReader and accessible via
> the existing AtomicReader docValues methods.
> }}
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