Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/3587#discussion_r107446618
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/windowing/WindowOperator.java
---
@@ -574,7 +588,7 @@ private void emitWindowContents(W window, ACC contents)
throws Exception {
*
* @param element skipped late arriving element to side output
*/
- private void sideOutput(StreamRecord<IN> element){
+ protected void sideOutput(StreamRecord<IN> element){
--- End diff --
Same as for `lateDataOutputTag`. It's used by the `EvictingWindowOperator`.
I can also make it package private.
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