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https://issues.apache.org/jira/browse/FLINK-7452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16178986#comment-16178986
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ASF GitHub Bot commented on FLINK-7452:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/4612#discussion_r140766496
--- Diff:
flink-examples/flink-examples-batch/src/main/scala/org/apache/flink/examples/scala/wordcount/WordCount.scala
---
@@ -49,6 +51,8 @@ object WordCount {
val params: ParameterTool = ParameterTool.fromArgs(args)
+ val t = Types.of[Either[String, Nothing]]
--- End diff --
Good question. Will remove it.
> Add helper methods for all built-in Flink types to Types
> --------------------------------------------------------
>
> Key: FLINK-7452
> URL: https://issues.apache.org/jira/browse/FLINK-7452
> Project: Flink
> Issue Type: Improvement
> Components: Type Serialization System
> Reporter: Timo Walther
> Assignee: Timo Walther
>
> Sometimes it is very difficult to provide `TypeInformation` manually, in case
> some extraction fails or is not available. {{TypeHint}}s should be the
> preferred way but this methods can ensure correct types.
> I propose to add all built-in Flink types to the {{Types}}. Such as:
> {code}
> Types.POJO(MyPojo.class)
> Types.POJO(Map<String, TypeInformation>)
> Types.GENERIC(Object.class)
> Types.TUPLE(TypeInformation, ...)
> Types.MAP(TypeInformation, TypeInformation)
> {code}
> The methods should validate that the returned type is exactly the requested
> type. And especially in case of POJO should help creating {{PojoTypeInfo}}.
> Once this is in place, we can deprecate the {{TypeInfoParser}}.
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