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https://issues.apache.org/jira/browse/OAK-9667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17476193#comment-17476193
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Angela Schreiber commented on OAK-9667:
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moving the ticket from JCR project to Oak as _jackrabbit-api_ today is located
within the oak code base.
> Check the existence of child nodes matching a pattern
> -----------------------------------------------------
>
> Key: OAK-9667
> URL: https://issues.apache.org/jira/browse/OAK-9667
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: jackrabbit-api
> Reporter: Joerg Hoh
> Priority: Major
>
> Next to the existing {{Node.hasNodes()}} method of the JCR API a variant of
> it would be handy:
> {{JackrabbitNode.hasNodes(Pattern pattern)}}
> it would allow an application to implement their own meaning of "child nodes"
> and provide a pattern, which could exclude all child nodes from this
> calcuation, which are implementation details of Jackrabbit/Oak (e.g.
> rep:policy nodes, jcr:content nodes). Today it is possible to implement this
> logic by getting the NodeIterator and filter manually, but getting the
> NodeIterator can be quite slow when the child node list is large and the
> backend non-local (e.g. Mongo).
> Also a version of getNodes() should be provided which accepts such a pattern:
> {{JackrabbitNode.getNodes(Pattern pattern)}}
>
> (see [https://lists.apache.org/thread/blw0y8wdhkpg0trymdo6hfz5g9j3cjsj] for
> the discussion on oak-dev)
>
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