[jira] [Created] (SAMZA-2387) LocalTableDescriptor should provide APIs to specify side inputs processor factory

["Bharath Kumarasubramanian (Jira)" <ji...@apache.org>]

Bharath Kumarasubramanian created SAMZA-2387:
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             Summary: LocalTableDescriptor should provide APIs to specify side inputs processor factory
                 Key: SAMZA-2387
                 URL: https://issues.apache.org/jira/browse/SAMZA-2387
             Project: Samza
          Issue Type: Improvement
            Reporter: Bharath Kumarasubramanian


Currently, `LocalTableDescriptor` has APIs to specify the side inputs and side input processor. However, the API for side inputs processor only allows applications to provide a lambda/processor which doesn't have access to MetricsRegistry and Config during instantiation. 

`SideInputsProcessorFactory` on the other hand, exposes MetricsRegistry and Config for applications to use during instantiation of `SideInputsProcessor`. We need to add an API that will allow applications to specify the `SideInputsProcessorFactory` if they want to hook into MetricsRegistry or use any config for their processors. 



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