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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] Commented: (JCR-2688) Provide utility for handling large number of child nodes/properties
Date Wed, 28 Jul 2010 10:18:17 GMT

    [ https://issues.apache.org/jira/browse/JCR-2688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12893129#action_12893129
] 

Michael Dürig commented on JCR-2688:
------------------------------------

Open questions:

- Currently these utility classes live in a new package o.a.j.flat. There might be better
names...
- I would like to add unit tests. However jcr-commons currently does not have dependencies
to the core (and other modules) which would be needed for the tests. Should we add the required
deps with scope test or should we place the unit test somewhere else? where?

> Provide utility for handling large number of child nodes/properties
> -------------------------------------------------------------------
>
>                 Key: JCR-2688
>                 URL: https://issues.apache.org/jira/browse/JCR-2688
>             Project: Jackrabbit Content Repository
>          Issue Type: New Feature
>          Components: jackrabbit-jcr-commons
>    Affects Versions: 2.2.0
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>         Attachments: JCR-2688.patch
>
>
> Jackrabbit does not cope well with 'flat' hierarchies. That is with hierarchies where
a node has many child nodes and/or properties. The current recommendation for such situations
is to manually add intermediate nodes. 
> It would be nice to have an utility which adds/removes intermediate nodes as needed and
expose a 'flat' view to users. Such an utility should:
> - expose a large number of nodes/properties as sequence
> - parametrize the order of how nodes/properties appear in the sequence
> - provide methods to lookup/add/remove nodes/properties by key 
> - organize the node/properties in the underlying JCR hierarchy in a way which is both
efficient for above operations and easily understandable to users looking at the hierarchy.


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