[jira] [Created] (FLINK-4783) Allow to register TypeInfoFactories manually

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-4783:
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             Summary: Allow to register TypeInfoFactories manually
                 Key: FLINK-4783
                 URL: https://issues.apache.org/jira/browse/FLINK-4783
             Project: Flink
          Issue Type: Improvement
          Components: Type Serialization System
    Affects Versions: 1.2.0
            Reporter: Till Rohrmann
            Priority: Minor
             Fix For: 1.2.0


The newly introduced {{TypeInfoFactories}} (FLINK-3042 and FLINK-3060) allow to create {{TypeInformations}} for types which are annotated with {{TypeInfo}}. This is useful if the user has control over the type for which he wants to generate the {{TypeInformation}}.

However, annotating a type is not always possible if the type comes from an external library. In this case, it would be good to be able to directly register a {{TypeInfoFactory}} without having to annotate the type.

The {{TypeExtractor#registerFactory}} already has such a method. However, it is declared private.



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