dawidwys commented on a change in pull request #13423:
URL: https://github.com/apache/flink/pull/13423#discussion_r493592305
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/AbstractInput.java
##########
@@ -68,4 +68,13 @@ public void processLatencyMarker(LatencyMarker
latencyMarker) throws Exception {
public void setKeyContextElement(StreamRecord record) throws Exception {
owner.internalSetKeyContextElement(record, stateKeySelector);
}
+
+ @Override
+ public void endInput() throws Exception {
+ if (owner instanceof BoundedOneInput && inputId == 1) {
Review comment:
BTW, shouldn't the `BoundedMultiInput` extend from `BoundedOneInput`?
```
interface BoundedMultiInput extends BoundedOneInput {
default void endInput() throws Exception {
endInput(1)
}
/**
* It is notified that no more data will arrive on the input identified
by the {@code inputId}.
* The {@code inputId} is numbered starting from 1, and `1` indicates
the first input.
*/
void endInput(int inputId) throws Exception;
}
```
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