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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-242) Implement method to "evenly" split a Range
Date Fri, 31 Jul 2009 14:50:14 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737543#action_12737543
] 

Jonathan Ellis commented on CASSANDRA-242:
------------------------------------------

I am fine with 2) as long as the range split method is part of Partitioner too so it's easily
overridable in one place.

> Implement method to "evenly" split a Range
> ------------------------------------------
>
>                 Key: CASSANDRA-242
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-242
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Stu Hood
>
> Two tickets currently depend on being able to deterministically split a Range object
into two "even" Ranges.
> This can be accomplished with RandomPartitioner/BigIntegerToken by taking the average
of the tokens, but the OrderPreservingPartitioner/StringToken implementation uses a Java Collator
to define the sort order of Tokens, which means that they are not necessarily sorted in byte/char
order.
> Collator.getCollationKey(String).toByteArray() gets you a sortable byte array, but there
is no publicly accessible API for converting a similar byte array back into a String.

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