Congxian Qiu(klion26) created FLINK-13148:
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Summary: Expose WindowedStream.sideOutputLateData() from
CoGroupedStreams
Key: FLINK-13148
URL: https://issues.apache.org/jira/browse/FLINK-13148
Project: Flink
Issue Type: Improvement
Components: API / DataStream
Reporter: Congxian Qiu(klion26)
Assignee: Congxian Qiu(klion26)
As FLINK-10050 supported {{alloedLateness}}, but we can not get the side output
containing the late data, this issue wants to fix it.
For implementation, I want to add an input parameter {{OutputTag}} in
{{WithWindow}} as following
{code:java}
protected WithWindow(DataStream<T1> input1,
DataStream<T2> input2,
KeySelector<T1, KEY> keySelector1,
KeySelector<T2, KEY> keySelector2,
TypeInformation<KEY> keyType,
WindowAssigner<? super TaggedUnion<T1, T2>, W> windowAssigner,
Trigger<? super TaggedUnion<T1, T2>, ? super W> trigger,
Evictor<? super TaggedUnion<T1, T2>, ? super W> evictor,
Time allowedLateness,
OutputTage<TaggedUnion<T1, T2>> outputTag) {
...
}
{code}
and add a function sideOutputLateData(OutputTag<T> outputTag) in with Window
{code:java}
public WithWindow<T1, T2, KEY, W> sideOutputLateData(OutputTag<TaggedUnion<T1,
T2>> outputTag) {
...
}
{code}
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