[jira] [Created] (ZOOKEEPER-1199) Make OpCode an enum

[Thomas Koch (JIRA)]

Make OpCode an enum
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                 Key: ZOOKEEPER-1199
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1199
             Project: ZooKeeper
          Issue Type: Sub-task
            Reporter: Thomas Koch


ZooDefs.OpCode is an interface with integer constants. Changing this to an enum 
provides safety. See "Item 30: Use enums instead of int constants" in Effective 
Java.

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