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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-4627) Document how to install your own custom collation for use in sorting and comparing string data values.
Date Mon, 26 Aug 2013 19:19:52 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Kim Haase updated DERBY-4627:

    Attachment: cdevcollationattribs.html

Attaching DERBY-4627-2.diff and cdevcollationattribs.html: 

M       src/devguide/cdevcollationattribs.dita

I added "method" to the sentence on Locale.getDefault. I also fixed the two-column list near
the bottom to get rid of the problem that the alignment (or not) of the right-hand column
depended on your browser's default font setting.
> Document how to install your own custom collation for use in sorting and comparing string
data values.
> ------------------------------------------------------------------------------------------------------
>                 Key: DERBY-4627
>                 URL: https://issues.apache.org/jira/browse/DERBY-4627
>             Project: Derby
>          Issue Type: Improvement
>          Components: Documentation
>    Affects Versions:
>            Reporter: Rick Hillegas
>            Assignee: Kim Haase
>         Attachments: cdevcollationattribs.html, DERBY-4627-2.diff, DERBY-4627.diff, DERBY-4627.stat,
> The Developer's Guide suggests that you are limited to the collations shipped with the
JRE. Consider, for instance, this sentence in the section titled "Character-based collation
in Derby":
> "Derby currently supports only running those rules that can be loaded dynamically from
the running JVM based on the territory attribute. Overrides to these rules by the user are
not supported."
> This is misleading. A long time ago, Knut wrote a blog explaining how to write your own
custom collation, plug it into the JRE, and then use it on string data stored in Derby: http://blogs.sun.com/kah/entry/user_defined_collation_in_apache
> This is a very useful capability of Derby. We should document it.

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