[jira] [Created] (ZEPPELIN-2493) Visualization class should throw an error if an abstract method is not implemented

[Tae Jun Kim (JIRA)]

Tae Jun Kim created ZEPPELIN-2493:
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             Summary: Visualization class should throw an error if an abstract 
method is not implemented
                 Key: ZEPPELIN-2493
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-2493
             Project: Zeppelin
          Issue Type: Improvement
            Reporter: Tae Jun Kim
            Assignee: Tae Jun Kim
            Priority: Minor


Visualization class should throw an error if an abstract method is not 
implemented just like SpellBase does.



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