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From "Dmitry Sapunov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-67) Node.canAddMixin(String)
Date Sun, 12 Nov 2006 23:13:48 GMT
    [ http://issues.apache.org/jira/browse/JCR-67?page=comments#action_12449190 ] 
            
Dmitry Sapunov commented on JCR-67:
-----------------------------------

Hi. 

I have comment for the following issue: 
http://www.mail-archive.com/jackrabbit-dev@incubator.apache.org/msg00183.html


The comment starts here:

"after the spec this method must return false if the node is locked."


This is not exactly true, by specification JSR170 at least: 

1. In those repositories that support it, locking allows a user to
temporarily lock nodes in order to prevent OTHER users from changing
them (8.4) 
2. "A lock would prevent the addition of the mixin" () - definetely
is not the same as "node is locked". Just because of (1) - lock may
prevent and may allow. (7.4.3) 
3. Effect of a lock - node cannot be changed by anyone except the
user who is the token holder for that lock.(8.4.8) 
and 4. More precisely, a lock applying to a node prevents all
non-token holders from doing any of the following: Adding or removing
its mixin node types. (same 8.4.8) 

So, IMO, the Node.canAddMixin() must return false for non-tocken
holders, and work as usual for tocken holders. 

wbr, dMitry


> Node.canAddMixin(String)
> ------------------------
>
>                 Key: JCR-67
>                 URL: http://issues.apache.org/jira/browse/JCR-67
>             Project: Jackrabbit
>          Issue Type: Bug
>            Reporter: Vinzenz Wyser
>         Assigned To: Stefan Guggisberg
>
> after the spec this method must return false if the node is locked.

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