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From "Yonik Seeley (JIRA)" <>
Subject [jira] Commented: (LUCENE-1061) Adding a factory to QueryParser to instantiate query instances
Date Wed, 27 Aug 2008 18:59:44 GMT


Yonik Seeley commented on LUCENE-1061:

In this specific instance I think subclassing of QueryParser is the right way to go, and avoids
introducing another class.  People are going to want more customizations than just changing
the types of created subclauses, and will need to subclass for these other types of changes

> Adding a factory to QueryParser to instantiate query instances
> --------------------------------------------------------------
>                 Key: LUCENE-1061
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: QueryParser
>    Affects Versions: 2.3
>            Reporter: John Wang
>             Fix For: 2.4
>         Attachments: lucene_patch.txt
> With the new efforts with Payload and scoring functions, it would be nice to plugin custom
query implementations while using the same QueryParser.
> Included is a patch with some refactoring the QueryParser to take a factory that produces
query instances.

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