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https://issues.apache.org/jira/browse/APEXCORE-291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15069065#comment-15069065
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ASF GitHub Bot commented on APEXCORE-291:
-----------------------------------------

Github user chandnisingh commented on the pull request:

    
https://github.com/apache/incubator-apex-core/pull/190#issuecomment-166792565
  
    Added the Proxy for MetricsAggregator.  
    Moved MetricAggregatorMeta out of LogicalPlan as that class is more than 
2000 lines. 
    Made MetricsAggregatorProxy nested class of MetricsAggregatorMeta


> Provide a way for an operator to specify its metric aggregator instance
> -----------------------------------------------------------------------
>
>                 Key: APEXCORE-291
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-291
>             Project: Apache Apex Core
>          Issue Type: Improvement
>            Reporter: Chandni Singh
>            Assignee: Chandni Singh
>
> Need a way to let an operator to provide its default metrics aggregator 
> instance.
> If an operator class implements AutoMetric.Aggregator then use that logical 
> instance of the operator class as the default metrics aggregator.



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