jiexray commented on code in PR #25996:
URL: https://github.com/apache/flink/pull/25996#discussion_r1918436120
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flink-runtime/src/main/java/org/apache/flink/streaming/api/windowing/assigners/WindowAssigner.java:
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@@ -64,6 +65,12 @@ public abstract Collection<W> assignWindows(
*/
public abstract Trigger<T, W> getDefaultTrigger();
+ /** Returns the default async trigger associated with this {@code
WindowAssigner}. */
+ public AsyncTrigger<T, W> getDefaultAsyncTrigger() {
Review Comment:
WindowAssigner is stateless, I think it is not a must to introudce a async
version.
Differently, Trigger is bind with state operation, and I need to introduce
an async Trigger.
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