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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4558) Make CompressingStoredFieldsFormat more flexible
Date Thu, 15 Nov 2012 17:08:12 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13498141#comment-13498141
] 

Robert Muir commented on LUCENE-4558:
-------------------------------------

{quote}
Why would we need hacks? Wouldn't it be sufficient to register Lucene40 and Lucene41 with
a codec impl whose *writers would throw UnsupportedOperationException and *readers would throw
IndexFormatTooOldException? (or is it a hack to you?)
{quote}

duh :) Thats a great plan for handling the too-old exception on the codec side!
                
> Make CompressingStoredFieldsFormat more flexible
> ------------------------------------------------
>
>                 Key: LUCENE-4558
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4558
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>         Attachments: LUCENE-4558.patch
>
>
> My plan consists in making CompressionMode an abstract class instead of an enum and having
different codec names per CompressionMode. I think this has two main benefits:
>  - it makes Lucene41StoredFieldsFormat cleaner (no need to write a CompressionMode id),
>  - it allows for custom CompressionModes.

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