Hi devs, I would like to start a discussion on FLIP-343: Remove parameter in WindowAssigner#getDefaultTrigger() [1].
The method getDefaultTrigger() in WindowAssigner takes a StreamExecutionEnvironment parameter, but this parameter is not actually used for any subclasses of WindowAssigner. Therefore, it is unnecessary to include this parameter. As such I propose to remove the StreamExecutionEnvironment field from WindowAssigner#getDefaultTrigger(StreamExecutionEnvironment env). Looking forward to your feedback. [1] https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=263425229 Best regards, Wencong Liu
