[jira] [Created] (HBASE-19678) HBase Admin Security Capabilities Should Be Represented as a Set

["BELUGA BEHR (JIRA)" <ji...@apache.org>]

BELUGA BEHR created HBASE-19678:
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             Summary: HBase Admin Security Capabilities Should Be Represented as a Set
                 Key: HBASE-19678
                 URL: https://issues.apache.org/jira/browse/HBASE-19678
             Project: HBase
          Issue Type: Improvement
          Components: hbase
    Affects Versions: 3.0.0
            Reporter: BELUGA BEHR
            Priority: Minor


{code:title=org.apache.hadoop.hbase.client.Admin}
  /**
   * Return the set of supported security capabilities.
   * @throws IOException
   * @throws UnsupportedOperationException
   */
  List<SecurityCapability> getSecurityCapabilities() throws IOException;
{code}

The comment says a "set" but it returns a List.  A Set would be the most appropriate data structure here, an immutable one perhaps, because the code that interacts with it looks up information using the _contains_ method which would be served well by a Set.  Please change this interface to return a Set.



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