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https://issues.apache.org/jira/browse/FLINK-3118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15043349#comment-15043349
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Martin Junghanns commented on FLINK-3118:
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Unlike {{MapFunction}} or {{JoinFunction}}, the {{MessageFunction}} does not
necessarily handle the sames types as contained in the input data sets. In my
specific algorithm, I can extract it from the input set and return it via
{{ResultTypeQueryable}}. But as the interface is currently not considered in
the {{VertexCentricIteration}}, this has no effect. Hope I got your question
right.
> Check if MessageFunction implements ResultTypeQueryable
> -------------------------------------------------------
>
> Key: FLINK-3118
> URL: https://issues.apache.org/jira/browse/FLINK-3118
> Project: Flink
> Issue Type: Bug
> Components: Gelly
> Reporter: Martin Junghanns
> Assignee: Martin Junghanns
>
> To generalize message values in vertex centric computations, it is necessary
> to let the user define the {{TypeInformation}} via {{ResultTypeQueryable}}.
> This needs to be checked in {{VertexCentricIteration}}.
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