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https://issues.apache.org/jira/browse/OAK-914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jukka Zitting resolved OAK-914.
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Resolution: Fixed
Done in http://svn.apache.org/r1504448.
> Relax the NodeStateDiff.childNodeChanged() semantics
> ----------------------------------------------------
>
> Key: OAK-914
> URL: https://issues.apache.org/jira/browse/OAK-914
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Jukka Zitting
> Assignee: Jukka Zitting
>
> Currently the {{childNodeChanged}} method is specified to only be called when
> there are some changes within that subtree. However, knowing in advance
> whether such changes exist can in some cases be as expensive as traversing
> down that subtree in the {{childNodeChanged}} method, leading to duplicate
> work. Thus it would be useful to relax the {{childNodeChanged}} method to be
> called whenever the underlying storage has a good reason to expect that
> something has changed within the subtree.
> In other words, instead of the method being called only when the storage is
> sure that there are changes, the contract would be to not call the method
> only when the storage is sure that there are no changes.
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