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From "Marvin Humphrey (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCY-112) PolyMatcher
Date Fri, 18 Jun 2010 03:50:23 GMT

     [ https://issues.apache.org/jira/browse/LUCY-112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marvin Humphrey updated LUCY-112:
---------------------------------

    Attachment: polymatcher.patch

> PolyMatcher
> -----------
>
>                 Key: LUCY-112
>                 URL: https://issues.apache.org/jira/browse/LUCY-112
>             Project: Lucy
>          Issue Type: New Feature
>          Components: Core - Search
>            Reporter: Marvin Humphrey
>            Assignee: Marvin Humphrey
>            Priority: Blocker
>         Attachments: polymatcher.patch
>
>
> PolyMatcher will serve as the parent class for several crucial subclasses:
> ANDScorer, ORMatcher, ORScorer, NOTMatcher, and RequiredOptionalScorer.
> Together, PolyMatcher and these classes will play roughly the same role as
> Lucene's BooleanScorer2 and its satellite classes, e.g. DisjunctionSumScorer.
> PolyMatcher is a simple class; its main role is to serve as a common parent
> with a array of "children" Matchers, a Similarity, and an array of cached
> coord boosts.
> This patch also adds the Coord() method to Similarity.

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