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From "Shai Erera (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-5801) Resurrect org.apache.lucene.facet.util.OrdinalMappingAtomicReader
Date Tue, 01 Jul 2014 12:57:24 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-5801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14048831#comment-14048831
] 

Shai Erera commented on LUCENE-5801:
------------------------------------

Thanks for opening this, we definitely need to bring this class back. While you're at it,
notice that there is a matching test as well as TaxonomyMergeUtils which did some work for
the user ... we should consider returning them as well, but this time under o.a.l.facet.taxonomy.utils,
as they are specific to the taxonomy index.

I think one change we should make is somehow expose FacetsConfig.dedupAndEncode as a static
method, so you can encode the new ordinals and then:

* Take an OrdinalsReader in the ctor (optional, 2nd ctor) in case the app used custom encoding
(default to DocValuesOrdinalsReader).
* Have a protected method dedupAndEncode, like FacetsConfig, default to FacetsConfig.dedupAndEncode
and allow the app to override with its own custom encoding.

> Resurrect org.apache.lucene.facet.util.OrdinalMappingAtomicReader
> -----------------------------------------------------------------
>
>                 Key: LUCENE-5801
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5801
>             Project: Lucene - Core
>          Issue Type: Bug
>    Affects Versions: 4.7
>            Reporter: Nicola Buso
>
> from lucene > 4.6.1 the class:
> org.apache.lucene.facet.util.OrdinalMappingAtomicReader
> was removed; resurrect it because used merging indexes related to merged taxonomies.



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