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https://issues.apache.org/jira/browse/BEAM-7629?focusedWorklogId=314614&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-314614
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ASF GitHub Bot logged work on BEAM-7629:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 18/Sep/19 20:04
            Start Date: 18/Sep/19 20:04
    Worklog Time Spent: 10m 
      Work Description: youngoli commented on pull request #9609: [BEAM-7629] 
Go SDK: Refactoring fn order validation (INCOMPLETE)
URL: https://github.com/apache/beam/pull/9609
 
 
   Refactoring how Fn parameter and return value order validation works. The 
old behavior is preserved where possible, but this new behavior needs to be 
used for structural DoFns in graph/fn.go.
   
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 314614)
    Time Spent: 1h  (was: 50m)

> Improve DoFn method validation in core/graph/fn.go
> --------------------------------------------------
>
>                 Key: BEAM-7629
>                 URL: https://issues.apache.org/jira/browse/BEAM-7629
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-go
>            Reporter: Daniel Oliveira
>            Assignee: Daniel Oliveira
>            Priority: Major
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Various improvements can be made to validating the signatures and type usages 
> in DoFns. Some things that should probably be checked:
>  * Check that StartBundle and FinishBundle contain any emit parameters and 
> side inputs present in ProcessElement
>  * Check that any side inputs/emits have correctly matching types between 
> Start/FinishBundle and ProcessElement
>  * Check that parameters and return values for the various methods are valid 
> (for ex. Teardown/Setup should have no params)



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