[
https://issues.apache.org/jira/browse/FLINK-8737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16377176#comment-16377176
]
Nico Kruber commented on FLINK-8737:
------------------------------------
We ([~uce] and me) could not think of any way a user can create a union of
union input gates by defining a program to run on flink and did not find cases
that we actually do now in the code base or reasons to do so in future. Just in
case we missed something, [~StephanEwen] can you confirm that creating a
recursive union of union input gates is indeed dead code and not needed?
> Creating a union of UnionGate instances will fail with
> UnsupportedOperationException when retrieving buffers
> ------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-8737
> URL: https://issues.apache.org/jira/browse/FLINK-8737
> Project: Flink
> Issue Type: Sub-task
> Components: Network
> Reporter: Nico Kruber
> Priority: Blocker
> Fix For: 1.5.0
>
>
> FLINK-8589 introduced a new polling method but did not implement
> {{UnionInputGate#pollNextBufferOrEvent()}}. This prevents UnionGate instances
> from containing a UnionGate instance which is explicitly allowed by its
> documentation and interface.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
