GitHub user fhueske opened a pull request: https://github.com/apache/flink/pull/316
[FLINK-1369] [types] Add support for Subclasses, Interfaces, Abstract Classes This PR rebased PR #236 to the current master. Some tests were failing and I had a closer look. The original PR handled interfaces and abstract classes without member variables as POJO types. However, POJO types without members cannot be handled correctly and do also not have members that can be referenced as keys or fields. I changed the logic such that interfaces and abstract classes without members are handled as GenericTypes. I'm not so familiar with the TypeExtractor, so it would be good if someone else could have a quick look. You can merge this pull request into a Git repository by running: $ git pull https://github.com/fhueske/flink aljoscha-subclass-types Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/316.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #316 ---- commit 8f20c0df045db820f69aa18ced8658055e131081 Author: Aljoscha Krettek <aljoscha.kret...@gmail.com> Date: 2014-11-26T12:27:06Z [FLINK-1369] [types] Add support for Subclasses, Interfaces, Abstract Classes. - Abstract classes with fields are handled as POJO types. - Interfaces and abstract classes without fields are handled as generic types. This closes #236 This closes #316 ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---