james strachan commented on ZOOKEEPER-78:

Benjamin I added ZOOKEEPER-89 and ZOOKEEPER-90 to track the dealing with loss 
of ownership/leader with connection reconnects and with session expiration. 
I've not been able to test out the latter yet; but I've tested the former and I 
think both are implemented now via the patch for 
 [ZOOKEEPER-90|http://svn.apache.org/viewvc?rev=679354&view=r] and 

> added a high level protocol/feature - for easy Leader Election or exclusive 
> Write Lock creation
> -----------------------------------------------------------------------------------------------
>                 Key: ZOOKEEPER-78
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-78
>             Project: Zookeeper
>          Issue Type: New Feature
>          Components: java client
>    Affects Versions: 3.0.0
>            Reporter: james strachan
>         Attachments: patch_with_including_Benjamin's_fix.patch, 
> using_zookeeper_facade.patch
> Here's a patch which adds a little WriteLock helper class for performing 
> leader elections or creating exclusive locks in some directory znode. Note 
> its an early cut; am sure we can improve it over time. The aim is to avoid 
> folks having to use the low level ZK stuff but provide a simpler high level 
> abstraction.

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