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Date: Tue, 30 Oct 2012 17:24:12 +0000 (UTC)
From: "Robert Muir (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Message-ID: <374640872.45420.1351617852337.JavaMail.jiratomcat@arcas>
In-Reply-To: <1251097258.44223.1351598173825.JavaMail.jiratomcat@arcas>
Subject: [jira] [Resolved] (LUCENE-4514) Make Scorer.freq() well defined:
 number of matches in doc
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     [ https://issues.apache.org/jira/browse/LUCENE-4514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir resolved LUCENE-4514.
---------------------------------

       Resolution: Fixed
    Fix Version/s: 5.0
                   4.1
    
> Make Scorer.freq() well defined: number of matches in doc
> ---------------------------------------------------------
>
>                 Key: LUCENE-4514
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4514
>             Project: Lucene - Core
>          Issue Type: Task
>          Components: core/query/scoring
>            Reporter: Robert Muir
>             Fix For: 4.1, 5.0
>
>         Attachments: LUCENE-4514.patch
>
>
> Today Scorer.freq() is somewhat useless: because in general it returns the number of matches, but other times it returns a strange floating point value (essentially an intermediate score).
> I think it should just return the number of matches in the document. This makes it well-defined and useful to consumers (e.g. if they are going to iterate over the positions or whatever in the future).
> {noformat}
>    /** Returns number of matches for the current document.
> -   *  This returns a float (not int) because
> -   *  SloppyPhraseScorer discounts its freq according to how
> -   *  "sloppy" the match was.
>     *
>     * @lucene.experimental */
> -  public abstract float freq() throws IOException;
> +  public abstract int freq() throws IOException;
> {noformat}

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