pnowojski commented on a change in pull request #8409: [FLINK-12478] Decompose
monolithic run-loops in StreamTask implementa…
URL: https://github.com/apache/flink/pull/8409#discussion_r286047350
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java
##########
@@ -222,12 +222,24 @@ protected StreamTask(
protected abstract void init() throws Exception;
- protected abstract void run() throws Exception;
-
protected abstract void cleanup() throws Exception;
protected abstract void cancelTask() throws Exception;
+ /**
+ * This method implements the default action of the task (e.g.
processing one event from the input). Implementations
+ * should (in general) be non-blocking.
+ *
+ * @return <code>true</code> if there is more work to perform as
default action for this task and <code>false</code>
+ * if the task is ready to finish.
+ * @throws Exception on any problems in the action.
+ */
+ protected abstract boolean performDefaultAction() throws Exception;
Review comment:
Shall we close this PR and supersede it with
https://github.com/apache/flink/pull/8431?
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