Hi Radu, you can register processing and event time time triggers using the TriggerContext which is given to the onElement, onProcessingTime and onEventTime methods of Trigger. In case you register a processing time timer, the onProcessingTime method will be called once the system clock has passed the timer time. In case of an event time timer, the onEventTime method is called once a watermark has been received which has a higher watermark than the timer.
I hope this helps you to solve your problem. Cheers, Till On Mon, Jan 25, 2016 at 9:25 PM, Radu Tudoran <radu.tudo...@huawei.com> wrote: > Re-Hi, > > > > I have another question regarding the triggering of the processing of a > window. Can this be done in some way at specific time intervals, > independent of whether an event has been received or not, via a trigger? > > > > The reason why I am considering a trigger rather than timeWindow(All) is > that timeWindow will end up generating multiple windows and duplicating > data, while having the option from the trigger to actually fire the > processing at certain times, independent of when the events arrived) would > enable to operate with a single window. > > > > Regards, > > > > Dr. Radu Tudoran > > Research Engineer - Big Data Expert > > IT R&D Division > > > > [image: cid:image007.jpg@01CD52EB.AD060EE0] > > HUAWEI TECHNOLOGIES Duesseldorf GmbH > > European Research Center > > Riesstrasse 25, 80992 München > > > > E-mail: *radu.tudo...@huawei.com <radu.tudo...@huawei.com>* > > Mobile: +49 15209084330 > > Telephone: +49 891588344173 > > > > HUAWEI TECHNOLOGIES Duesseldorf GmbH > Hansaallee 205, 40549 Düsseldorf, Germany, www.huawei.com > Registered Office: Düsseldorf, Register Court Düsseldorf, HRB 56063, > Managing Director: Bo PENG, Wanzhou MENG, Lifang CHEN > Sitz der Gesellschaft: Düsseldorf, Amtsgericht Düsseldorf, HRB 56063, > Geschäftsführer: Bo PENG, Wanzhou MENG, Lifang CHEN > > This e-mail and its attachments contain confidential information from > HUAWEI, which is intended only for the person or entity whose address is > listed above. Any use of the information contained herein in any way > (including, but not limited to, total or partial disclosure, reproduction, > or dissemination) by persons other than the intended recipient(s) is > prohibited. If you receive this e-mail in error, please notify the sender > by phone or email immediately and delete it! > > >
