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From "Brian Loss (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-956) Iterator to transform key parts
Date Mon, 14 Jan 2013 16:18:12 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13552832#comment-13552832
] 

Brian Loss commented on ACCUMULO-956:
-------------------------------------

Yeah, I was trying to keep the test code less redundant.  Since MockAccumulo creates the iterator
for me, I have no way to pass in the different transformation functions in each test and would
instead have to extend the iterator and have one class per test, which seemed overly verbose.
 However, I can certainly change it to do that, if you think it's better.
                
> Iterator to transform key parts
> -------------------------------
>
>                 Key: ACCUMULO-956
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-956
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Brian Loss
>             Fix For: 1.5.0
>
>         Attachments: key_transforming_iterator-1.patch, key_transforming_iterator.patch
>
>
> Iterators that transform parts of the key can be tricky if any transformation affects
sort ordering.  Implement an iterator that takes care of the tricky details that come with
modifying sort order (e.g., handling scan-time iterator reconstruction and the associated
seek).

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