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From "Olivier Favre (JIRA)" <>
Subject [jira] [Updated] (LUCENE-3392) Combining analyzers output
Date Tue, 23 Aug 2011 12:07:29 GMT


Olivier Favre updated LUCENE-3392:

    Attachment: ComboAnalyzer-lucene3x.patch

Patch for lucene-3x.
Tested with Sun's Java 1.6.0_26-b03.
Uses a special factory for cloning Readers, some implementation use reflection to gain access
to private fields in order to reduce the need to read and copy a Readers' content.

> Combining analyzers output
> --------------------------
>                 Key: LUCENE-3392
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>            Reporter: Olivier Favre
>            Priority: Minor
>              Labels: analysis
>             Fix For: 3.4
>         Attachments: ComboAnalyzer-lucene3x.patch
>   Original Estimate: 48h
>  Remaining Estimate: 48h
> It should be easy to combine the output of multiple Analyzers, or TokenStreams.
> A ComboAnalyzer and a ComboTokenStream class would take multiple instances, and multiplex
their output, keeping a rough order of tokens like increasing position then increasing start
offset then increasing end offset.

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