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From "angela (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (OAK-660) ReadOnlyTree: implement Object#equals and Object#hashCode
Date Fri, 03 May 2013 14:44:15 GMT

     [ https://issues.apache.org/jira/browse/OAK-660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

angela resolved OAK-660.
------------------------

    Resolution: Won't Fix

not needed any more
                
> 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
>         Attachments: OAK-660.patch
>
>
> 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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