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From "Chesnay Schepler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3118) Check if MessageFunction implements ResultTypeQueryable
Date Sat, 05 Dec 2015 12:23:10 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15043279#comment-15043279

Chesnay Schepler commented on FLINK-3118:

why cant you use

public static <IN1, IN2, OUT> TypeInformation<OUT> getBinaryOperatorReturnType(Function
function, Class<?> baseClass,
		boolean hasIterables, boolean hasCollector, TypeInformation<IN1> in1Type, TypeInformation<IN2>
		String functionName, boolean allowMissing)

> 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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