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https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mahadev konar updated ZOOKEEPER-78:
-----------------------------------

    Attachment: ZOOKEEPER-78.patch

a new patch. I have changed the directory structure in this 

the code now is in
{{root}}/src/recipes/lock/src/java/org/apache/zookepeer/recipes/lock/
also the tests are in 
{{root}}/src/recipes/lock/test/org/apache/zookeeper/recipes/lock/

the new directory structure allows us to have both the java and c implemention 
in the same parent directory strucure.

src/recipes/lock/

also -
- added a new interface Locklistener
- removed runnable to be a locklistener interface whose methods lockAcqured and 
lockReleased are called on a lock acquired and relase of a lock
- refactored some code
- deleted not required public methods.
- added build files for the recipes directory
- changed the tests to work with new api's

i am implementing the recipes in c. Will have an updated patch up soon. 
comments are welcome.


> 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
>            Assignee: james strachan
>             Fix For: 3.2.0
>
>         Attachments: patch_with_including_Benjamin's_fix.patch, 
> using_zookeeper_facade.patch, ZOOKEEPER-78.patch, ZOOKEEPER-78.patch, 
> ZOOKEEPER-78.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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