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From "Commit Tag Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-5063) Allow GrowableWriter to store negative values
Date Thu, 20 Jun 2013 20:08:21 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-5063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13689590#comment-13689590
] 

Commit Tag Bot commented on LUCENE-5063:
----------------------------------------

[trunk commit] jpountz
http://svn.apache.org/viewvc?view=revision&revision=1495156

LUCENE-5063: Compress integer and long field caches and remove FieldCache.get(Byte|Short)s,
default parsers and related class/methods (merged from r1494753 and r1495146).
                
> Allow GrowableWriter to store negative values
> ---------------------------------------------
>
>                 Key: LUCENE-5063
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5063
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Trivial
>             Fix For: 4.4
>
>         Attachments: LUCENE-5063.patch, LUCENE-5063.patch
>
>
> For some use-cases, it would be convenient to be able to store negative values in a GrowableWriter,
for example to use it in FieldCache: The first term is the minimum value and one could use
a GrowableWriter to store deltas between this minimum value and the current value. (The need
for negative values comes from the fact that maxValue - minValue might be larger than Long.MAX_VALUE.)

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