Thanks Piotr, the thing is that I am on Stream data and not on keyed stream data. So, I cannot use the TimerService concept here. I am triggering a local window. I ended up using java.util.Timer [1] and it seems to suffice my requirements.
[1] https://docs.oracle.com/javase/7/docs/api/java/util/Timer.html Thanks! *--* *-- Felipe Gutierrez* *-- skype: felipe.o.gutierrez* *--* *https://felipeogutierrez.blogspot.com <https://felipeogutierrez.blogspot.com>* On Wed, Oct 30, 2019 at 2:59 PM Piotr Nowojski <pi...@ververica.com> wrote: > Hi, > > If you want to register a processing/event time trigger in your custom > operator, you can take a look how other operators are doing it, by calling > AbstractStreamOperator#getInternalTimerService [1]. You can look around > the Flink’s code base for usages of this method, there are at least couple > of them (like CepOperator or IntervalJoinOperator). > > Hope that helps, > Piotrek > > [1] > https://ci.apache.org/projects/flink/flink-docs-master/api/java/org/apache/flink/streaming/api/operators/AbstractStreamOperator.html#getInternalTimerService-java.lang.String-org.apache.flink.api.common.typeutils.TypeSerializer-org.apache.flink.streaming.api.operators.Triggerable- > > On 28 Oct 2019, at 10:09, Felipe Gutierrez <felipe.o.gutier...@gmail.com> > wrote: > > Hi all, > > I have my own stream operator which trigger an aggregation based on the > number of items received > (OneInputStreamOperator#processElement(StreamRecord)). However, it is > possible to not trigger my aggregation if my operator does not receive the > max items that have been set. So, I need a timeout trigger. > > I am confused if I need to extend Trigger on > MyPreAggregate-AbstractUdfStreamOperator or if I have to put a window as a > parameter of the operator class MyPreAggregate-AbstractUdfStreamOperator<K, > V, IN, OUT, W extends Window>. what is the best approach? > > Thanks, > Felipe > *--* > *-- Felipe Gutierrez* > > *-- skype: felipe.o.gutierrez* > *--* *https://felipeogutierrez.blogspot.com > <https://felipeogutierrez.blogspot.com/>* > > >
