Stephan Ewen created FLINK-9392:

             Summary: Add @FunctionalInterface annotations to all core 
functional interfaces
                 Key: FLINK-9392
             Project: Flink
          Issue Type: Improvement
          Components: Core
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen

The {{@FunctionalInterface}} annotation should be added to all SAM interfaces 
in order to prevent accidentally breaking them (as non SAMs).

We had a case of that before for the {{SinkFunction}} which was compatible 
through default methods, but incompatible for users that previously 
instantiated that interface through a lambda.

This message was sent by Atlassian JIRA

Reply via email to