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From "angela (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-224) Lock: Session.addLockToken(String) does make the session to a lock holder
Date Tue, 27 Sep 2005 14:47:49 GMT
    [ http://issues.apache.org/jira/browse/JCR-224?page=comments#action_12330600 ] 

angela commented on JCR-224:

ok, fine with me...

but i would expect, that Session.addLockToken(String) informs about the success either by
a return value or by throwing an exception. jcr throws almost everywhere...

> Lock: Session.addLockToken(String) does make the session to a lock holder
> -------------------------------------------------------------------------
>          Key: JCR-224
>          URL: http://issues.apache.org/jira/browse/JCR-224
>      Project: Jackrabbit
>         Type: Bug
>   Components: locks
>     Reporter: angela

> JSR170 says:
> Lock.getLockToken(): 
> "May return the lock token for this lock. If this Session holds the lock token for this
lock, then this method will return that lock token. If this Session does not hold the applicable
lock token then this method will return null."
> Session.addLockToken(String lt):
> "Adds the specified lock token to this session. Holding a lock token allows the Session
object of the lock owner to alter nodes that are locked by the lock specified by that particular
lock token."
> and:
> "Note that, as mentioned above, any user with the correct lock token assumes the power
to remove a lock and alter nodes under that lock. It does not have to be the lock owner."
> If i remember the discussion regarding the locking correctly, it was decided, that the
locktoken is turned to any session, that contains the proper token. And: the Lock.getLockToken()
is the only way to find out, whether a given session is allowed to modify a locked node (in
contrast to the isLocked() method). 
> I have the impression, that the current implementation does not respect this:
> Lock.getLockToken() passes the call to the LockInfo object. The latter performs the following
> public String getLockToken(Session session) {
>         if (session.equals(lockHolder)) {
>             return lockToken.toString();
>         }
>         return null;
>     }
> where the lockHolder is set to a particular session in consequence to Session.addLockToken
but only if the lockHolder is null... otherwise the call it is ignored (LockManagerImpl line
> however, from the above quotes, i would rather expect, that the method should check,
if the given Session holds the lockToken associated with this lock. 
> regards
> angela

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