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https://issues.apache.org/jira/browse/FLINK-3258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15119243#comment-15119243
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ASF GitHub Bot commented on FLINK-3258:
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Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/1538
> Merge AbstractInvokable's registerInputOutput and invoke
> --------------------------------------------------------
>
> Key: FLINK-3258
> URL: https://issues.apache.org/jira/browse/FLINK-3258
> Project: Flink
> Issue Type: Improvement
> Reporter: Ufuk Celebi
> Assignee: Ufuk Celebi
> Fix For: 1.0.0
>
>
> The separation between {{registerInputOutput}} and {{invoke}} in
> {{AbstractInvokable}} is an artifact of previous Flink versions. The
> {{registerInputOutput}} method used to trigger the creation of input and
> output gates. This has become obsolete as the task itself takes care of this
> now and {{registerInputOutput}} only requests the input/output gates.
> The contract of having a single {{invoke}} method, which cleans up after
> itself is easier to implement than applying it to two methods.
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