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Aljoscha Krettek updated FLINK-2646: ------------------------------------ Labels: usability (was: ) > User functions should be able to differentiate between successful close and > erroneous close > ------------------------------------------------------------------------------------------- > > Key: FLINK-2646 > URL: https://issues.apache.org/jira/browse/FLINK-2646 > Project: Flink > Issue Type: Improvement > Components: API / DataStream > Affects Versions: 0.10.0 > Reporter: Stephan Ewen > Assignee: Kostas Kloudas > Priority: Major > Labels: usability > > Right now, the {{close()}} method of rich functions is invoked in case of > proper completion, and in case of canceling in case of error (to allow for > cleanup). > In certain cases, the user function needs to know why it is closed, whether > the task completed in a regular fashion, or was canceled/failed. > I suggest to add a method {{closeAfterFailure()}} to the {{RichFunction}}. By > default, this method calls {{close()}}. The runtime is the changed to call > {{close()}} as part of the regular execution and {{closeAfterFailure()}} in > case of an irregular exit. > Because by default all cases call {{close()}} the change would not be API > breaking. -- This message was sent by Atlassian Jira (v8.3.4#803005)