kennknowles commented on a change in pull request #16458:
URL: https://github.com/apache/beam/pull/16458#discussion_r781517475
##########
File path:
sdks/java/harness/src/main/java/org/apache/beam/fn/harness/FnApiDoFnRunner.java
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@@ -1720,6 +1736,23 @@ public Object restriction() {
doFnInvoker.invokeOnTimer(timerId, timerFamilyId, onTimerContext);
}
+ private <K> void processOnWindowExpiration(Timer<K> timer) {
+ try {
+ currentKey = timer.getUserKey();
+ currentTimer = timer;
+ Iterator<BoundedWindow> windowIterator =
Review comment:
Ah yes, I see that you are mutating a field so that the nested instance
can carry it to the invoker. Gotta say there's quite a lot of implicit data
flows here. I understand it is mutation for efficiency. Might be worth thinking
about how to make them more explicit and local.
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