Github user s1ck commented on the issue:
https://github.com/apache/flink/pull/2527
> Would a graph translator simplify the conversion from Long to String? You
can do graph.run(new TranslateEdgeValues<...>(new StringToLong()) and write a
simple public class StringToLong implements TranslateFunction<String, Long> {
.... Or this could be an anonymous class.
I was not aware of this function / interface. I just needed it to use the
same data for String and Long tests. I will update the conversion to your
suggested method.
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