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Fabian Hueske commented on FLINK-3002: -------------------------------------- I am not exactly sure what you mean. Type inference should work exactly as with a {{Tuple2<Left, Right>}}, no? For tuples the types are defined by the user in the program (through function return types) and the TypeExtractor creates the correct TypeInformation. I think that should work as well for {{Either<Left, Right>}}. > Add an EitherType to the Java API > --------------------------------- > > Key: FLINK-3002 > URL: https://issues.apache.org/jira/browse/FLINK-3002 > Project: Flink > Issue Type: New Feature > Components: Java API > Affects Versions: 0.10 > Reporter: Stephan Ewen > Assignee: Vasia Kalavri > Fix For: 1.0 > > > Either types are recurring patterns and should be serialized efficiently, so > it makes sense to add them to the core Java API. > Since Java does not have such a type as of Java 8, we would need to add our > own version. > The Scala API handles the Scala Either Type already efficiently. I would not > use the Scala Either Type in the Java API, since we are trying to get the > {{flink-java}} project "Scala free" for people that don't use Scala and o not > want to worry about Scala version matches and mismatches. -- This message was sent by Atlassian JIRA (v6.3.4#6332)