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https://issues.apache.org/jira/browse/LUCENE-1680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718054#action_12718054
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Michael McCandless commented on LUCENE-1680:
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bq. Also, I think we can't suddenly change protected methods to private (that
breaks back compat).
I meant to say "can't suddenly change add 'final' to protected methods", but I
see from your new patch that you understood what I meant anyway :)
Patch looks good -- I'll commit shortly. Thanks!
> Make prefixLength accessible to PrefixTermEnum subclasses
> ---------------------------------------------------------
>
> Key: LUCENE-1680
> URL: https://issues.apache.org/jira/browse/LUCENE-1680
> Project: Lucene - Java
> Issue Type: Improvement
> Affects Versions: 2.9
> Reporter: Simon Willnauer
> Assignee: Michael McCandless
> Priority: Minor
> Fix For: 2.9
>
> Attachments: PrefixTermEnum.patch, PrefixTermEnum_2nd.patch
>
>
> PrefixTermEnum#difference() offers a way to influence scoring based on the
> difference between the prefix Term and a term in the enumeration. To
> effectively use this facility the length of the prefix should be accessible
> to subclasses. Currently the prefix term is private to PrefixTermEnum. I
> added a getter for the prefix length and made PrefixTermEnum#endEnum(),
> PrefixTermEnum#termCompare() final for consistency with other TermEnum
> subclasses.
> Patch is attached.
> Simon
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