Thank you Jonas, I am using version *1.2-SNAPSHOT* of Apache Flink to leverage the advanced Evictor class.
However, while trying to use FIRE_AND_PURGE I am getting the following error: java.lang.UnsupportedOperationException: Not supported yet. at de.traffic.ui.streaming.WindowCustomTrigger.clear(WindowCustomTrigger.java:51) at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator$Context.clear(WindowOperator.java:643) at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.cleanup(WindowOperator.java:421) at org.apache.flink.streaming.runtime.operators.windowing.WindowOperator.processElement(WindowOperator.java:321) at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:185) at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:63) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:269) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:654) at java.lang.Thread.run(Thread.java:745) Do we have support for this functionality in *1.2-SNAPSHOT* ? Thanks. On Mon, Jan 23, 2017 at 10:57 AM, Jonas <jo...@huntun.de> wrote: > The documentation says > > https://flink.apache.org/news/2015/12/04/Introducing-windows.html wrote > > On each event, a trigger can decide to fire (i.e., evaluate), purge > > (remove the window and discard its content), or fire and then purge the > > window. A trigger that just fires evaluates the window and keeps it as it > > is, i.e., all elements remain in the window and are evaluated again when > > the triggers fires the next time. > > So you can choose between *Fire*, *Purge* and *Fire&Purge*. Seems like > selected *Fire* but meant to choose *Fire&Purge*. > > From what it seems you want a PurgingTrigger. You also didn't state what > version of Flink you are using :) > > -- Jonas > > > > -- > View this message in context: http://apache-flink-user- > mailing-list-archive.2336050.n4.nabble.com/Expected-behaviour-of-windows- > tp11200p11205.html > Sent from the Apache Flink User Mailing List archive. mailing list archive > at Nabble.com. > -- Thanks & Regards, *Abdul Salam Shaikh*