guozhangwang commented on code in PR #12135:
URL: https://github.com/apache/kafka/pull/12135#discussion_r872900761
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streams/src/main/java/org/apache/kafka/streams/kstream/internals/KStreamSlidingWindowAggregate.java:
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@@ -50,22 +46,32 @@
private final SlidingWindows windows;
private final Initializer<VAgg> initializer;
private final Aggregator<? super KIn, ? super VIn, VAgg> aggregator;
+ private final EmitStrategy emitStrategy;
private boolean sendOldValues = false;
public KStreamSlidingWindowAggregate(final SlidingWindows windows,
final String storeName,
final Initializer<VAgg> initializer,
final Aggregator<? super KIn, ? super
VIn, VAgg> aggregator) {
+ this(windows, storeName, EmitStrategy.onWindowUpdate(), initializer,
aggregator);
Review Comment:
I replied in the other comment that this is now only used in `cogroup` which
do not have emit-on-final yet, but I guess we can always just call it
explicitly.
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