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From "Thomas Mueller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-169) Support orderable nodes
Date Tue, 10 Jul 2012 07:39:34 GMT

    [ https://issues.apache.org/jira/browse/OAK-169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13410110#comment-13410110

Thomas Mueller commented on OAK-169:

Could we discuss this in the next meeting? I think orderable child nodes are not important
if the default order of child nodes is sorted by node name. If the default order (even if
it's a stable order) appears to be random for a human, then he is very tempted to use orderable
child nodes. If the default order is sorted by name, then Carstens use case probably wouldn't
need orderable child nodes.

A use case similar to what Carsten described is a "log file node". Each child node is a new
entry in the log file, and new entries are appended using a timestamp, to the end of the log
file. The log file could grow very large. To display a part of the log file, one could use
name patterns such as node.getNodes("2012-01-12 15:*") to get all entries for the given hour.
> Support orderable nodes
> -----------------------
>                 Key: OAK-169
>                 URL: https://issues.apache.org/jira/browse/OAK-169
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: jcr
>            Reporter: Jukka Zitting
> There are JCR clients that depend on the ability to explicitly specify the order of child
nodes. That functionality is not included in the MicroKernel tree model, so we need to implement
it either in oak-core or oak-jcr using something like an extra (hidden) {{oak:childOrder}}
property that records the specified ordering of child nodes. A multi-valued string property
is probably good enough for this.

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