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ASF GitHub Bot commented on FLINK-1032: --------------------------------------- Github user rmetzger commented on the pull request: https://github.com/apache/incubator-flink/pull/141#issuecomment-57940493 Thank you for the thorough review. I'll address the issues. Regarding the serializer test, there is the `PojoSerializerTest extends SerializerTestBase<PojoSerializerTest.TestUserClass>`. It is doing 12 tests (copy, instantiation, etc). I'll look into the Tuple Serializer tests and see what I can do for the PojoSerializer. But there are definitively tests for the comparator missing. > Extend POJO Field Selectors to Support Accessing Nested Objects > --------------------------------------------------------------- > > Key: FLINK-1032 > URL: https://issues.apache.org/jira/browse/FLINK-1032 > Project: Flink > Issue Type: Sub-task > Components: Java API > Reporter: Aljoscha Krettek > Assignee: Robert Metzger > > Right now you can only use fields of the top-level object as key fields in > groupings, joins, and co-group. This should be extended to allow using nested > fields. We have to be careful with null fields, though. -- This message was sent by Atlassian JIRA (v6.3.4#6332)