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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-1680) Make prefixLength accessible to PrefixTermEnum subclasses
Date Wed, 10 Jun 2009 11:42:07 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12718038#action_12718038
] 

Simon Willnauer commented on LUCENE-1680:
-----------------------------------------

You are right, adding a getter for prefix Term is more general. I had a brief look at Term#set
and I missed that it is package private. Otherwise it would have been mutable and therefore
I would have preferred to just return the prefix length.
I added a new version of the patch. 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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