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https://issues.apache.org/jira/browse/FLINK-3118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15043279#comment-15043279
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Chesnay Schepler commented on FLINK-3118:
-----------------------------------------
why cant you use
{code}
@SuppressWarnings("unchecked")
public static <IN1, IN2, OUT> TypeInformation<OUT>
getBinaryOperatorReturnType(Function function, Class<?> baseClass,
boolean hasIterables, boolean hasCollector,
TypeInformation<IN1> in1Type, TypeInformation<IN2> in2Type,
String functionName, boolean allowMissing)
{code}
> 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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