angela created OAK-660:
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Summary: ReadOnlyTree: implement Object#equals and Object#hashCode
Key: OAK-660
URL: https://issues.apache.org/jira/browse/OAK-660
Project: Jackrabbit Oak
Issue Type: Improvement
Components: core
Reporter: angela
Priority: Minor
for OAK-527 i was looking for way to detect changes to the permission store
in an efficient and performing way without reloading the complete permissions
upon every single call to Root#refresh and Root#rebase.
in a private discussion with Marcel he pointed out the fact that comparing
NodeStates that hold the permission information for a given set of principals
i would most probably do the trick. however this comes with the drawback of
loosing all hierarchy information when changing the permission provider to work
on oak-spi interface instead of using (ReadOnly)Trees, which is a
bit unfortunate in a hierarchy-aware permission evaluation.
since one of the reason for having the ReadOnlyTree implementation IMO is
to bring Tree-functionality to a NodeState whose ancestors have been accessed
before, i would like to suggest to add implementations for #equals and
#hashCode to ReadOnlyTree that more or less reflect the those of the underlying
NodeState.
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