Thank you Jagadish. It is a very simple workaround.
Looking forward for the high level api to support windowing and triggers. On Thu, Jul 13, 2017 at 1:33 AM Jagadish Venkatraman <jagadish1...@gmail.com> wrote: > Hi Rui, > > Are you using the low-level API or the high-level API? The high-level API ( > *StreamApplication*) that offers built-in support for windows/triggers is > currently in preview stage, and we are working to make it production ready > with the next release. > > It looks like you are referring to the low-level *WindowableTask* API. In > this API, you are guaranteed a periodic callback after every > *windowMs* milliseconds. > It should be possible (with minimal effort) to implement Calendar windowing > on top of this - you can set a low value for *task.window.ms > <http://task.window.ms> *and periodically evaluate inside *window *if > results should be emitted based on Calendar time. > > Please do let us know if you had further questions. > > Best, > Jagadish > > > > On Wed, Jul 12, 2017 at 6:57 AM, Rui Tang <tangrui...@gmail.com> wrote: > > > According to the windowing ( > > > http://samza.apache.org/learn/documentation/0.13/container/windowing.html) > > documentation, I know that I can specify a fixed duration window, like > > 8640000ms (one day). That means if the window starts at 9:00 AM, then it > > will end at 9:00 AM the next day. > > > > But I need a kind of window that overlaps some calendar day, that means > > whenever the window starts, it will end at the end of the day. How can I > do > > this using Samza windowing system? Do I need to create my own window and > > trigger implementation? > > > > Thank you! > > > > > > -- > Jagadish V, > Graduate Student, > Department of Computer Science, > Stanford University >
