[jira] [Updated] (FLINK-12412) Allow ListTypeInfo used for java.util.List and MapTypeInfo used for java.util.Map

["Robert Metzger (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-12412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Metzger updated FLINK-12412:
-----------------------------------
    Fix Version/s:     (was: 1.12.0)
                   1.13.0

> Allow ListTypeInfo used for java.util.List and MapTypeInfo used for java.util.Map
> ---------------------------------------------------------------------------------
>
>                 Key: FLINK-12412
>                 URL: https://issues.apache.org/jira/browse/FLINK-12412
>             Project: Flink
>          Issue Type: New Feature
>          Components: API / Type Serialization System
>    Affects Versions: 1.9.0
>            Reporter: YangFei
>            Assignee: YangFei
>            Priority: Major
>              Labels: pull-request-available, starer
>             Fix For: 1.13.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
>  
> {code:java}
> // code placeholder
> public static class UserBehavior { 
>   public long userId;
>   public long itemId;  
>   public int categoryId; 
>   public long timestamp;  
>   public List<String> comments; 
> }
> public static void main(String[] args) throws Exception { 
>   PojoTypeInfo<UserBehavior> pojoType = (PojoTypeInfo<UserBehavior>) TypeExtractor.createTypeInfo(UserBehavior.class); 
> }
> {code}
>  
> The filed comments in UserBehavior will be extracted by TypeExtractor to GenericType .
> I think it can be extracted to ListTypeInfo .
> This would be a big improvement as in many cases classes including List or Map



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