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Dynamical Windows


I am developing a Flink 1.4.2 application currently with sliding windows (Example below)
I want to ask if there is a way to create the window time dynamically also the key has to change in some Use Cases and we don't want to create an specific window for each UC

I want to send those values from the front end

SingleOutputStreamOperator<Object> windowed = ObjectDTO



.trigger(new AlertTrigger(env.getStreamTimeCharacteristic()))

.aggregate(new TxnAggregator(), new TxnWindowFn())


Thank you
Best Regards

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