Hi, the function is in fact applied to the remaining elements (at least I hope it is). So the first sentence should be the correct one.
Cheers, Aljoscha > On 28 Nov 2015, at 03:14, Nirmalya Sengupta <sengupta.nirma...@gmail.com> > wrote: > > Hello Fabian, > > From your reply to this thread: > ' it is correct that the evictor is called BEFORE the window function is > applied because this is required to support certain types of sliding windows. > ' > > This is clear to me now. However, my point was about the way it is described > in the User-guide. The guide says this: > ' After the trigger fires, and before the function (e.g., sum, count) is > applied to the window contents, an optional Evictor removes some elements > from the beginning of the window before the remaining elements are passed on > to the function ' > > As I read it again, I see where the problem lies. It says some elements are > removed before the **rest** are passed to the function. This is not what > happens, I think. Evictor removes elements and the function sees this set of > removed elements, not the remaining elements. Remaining elements remain in > the window and are perhaps picked up by the Evictor next time. > > Carrying on from your elaboration, I think guide's statement can be better > rearranged as: > > ' After the trigger fires, the function (e.g., sum, count) is applied to the > entire contents of the window. However, an optionally provided Evictor, > removes some elements from the beginning of the window, according to the > criteria of eviction. The function is then applied to this set of __removed__ > elements. ' > > Let me know if I am way off the mark here. > > -- Nirmalya > > -- > Software Technologist > http://www.linkedin.com/in/nirmalyasengupta > "If you have built castles in the air, your work need not be lost. That is > where they should be. > Now put the foundation under them."
