[ https://issues.apache.org/jira/browse/FLINK-12412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16834303#comment-16834303 ]
YangFei commented on FLINK-12412: --------------------------------- This sounds interesting. > 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: 1.9.0 > > 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 -- This message was sent by Atlassian JIRA (v7.6.3#76005)