Well state is still not implemented for merging windows even for Java (though I believe the idea was to disallow ValueState there).
On Wed, Apr 24, 2019 at 1:11 PM Robert Bradshaw <rober...@google.com> wrote: > It was unclear what the semantics were for ValueState for merging > windows. (It's also a bit weird as it's inherently a race condition > wrt element ordering, unlike Bag and CombineState, though you can > always implement it as a CombineState that always returns the latest > value which is a bit more explicit about the dangers here.) > > On Wed, Apr 24, 2019 at 10:08 PM Brian Hulette <bhule...@google.com> > wrote: > > > > That's a great idea! I thought about this too after those posts came up > on the list recently. I started to look into it, but I noticed that there's > actually no implementation of ValueState in userstate. Is there a reason > for that? I started to work on a patch to add it but I was just curious if > there was some reason it was omitted that I should be aware of. > > > > We could certainly replicate the example without ValueState by using > BagState and clearing it before each write, but it would be nice if we > could draw a direct parallel. > > > > Brian > > > > On Fri, Apr 12, 2019 at 7:05 AM Maximilian Michels <m...@apache.org> > wrote: > >> > >> > It would probably be pretty easy to add the corresponding code > snippets to the docs as well. > >> > >> It's probably a bit more work because there is no section dedicated to > >> state/timer yet in the documentation. Tracked here: > >> https://jira.apache.org/jira/browse/BEAM-2472 > >> > >> > I've been going over this topic a bit. I'll add the snippets next > week, if that's fine by y'all. > >> > >> That would be great. The blog posts are a great way to get started with > >> state/timers. > >> > >> Thanks, > >> Max > >> > >> On 11.04.19 20:21, Pablo Estrada wrote: > >> > I've been going over this topic a bit. I'll add the snippets next > week, > >> > if that's fine by y'all. > >> > Best > >> > -P. > >> > > >> > On Thu, Apr 11, 2019 at 5:27 AM Robert Bradshaw <rober...@google.com > >> > <mailto:rober...@google.com>> wrote: > >> > > >> > That's a great idea! It would probably be pretty easy to add the > >> > corresponding code snippets to the docs as well. > >> > > >> > On Thu, Apr 11, 2019 at 2:00 PM Maximilian Michels < > m...@apache.org > >> > <mailto:m...@apache.org>> wrote: > >> > > > >> > > Hi everyone, > >> > > > >> > > The Python SDK still lacks documentation on state and timers. > >> > > > >> > > As a first step, what do you think about updating these two > blog > >> > posts > >> > > with the corresponding Python code? > >> > > > >> > > > https://beam.apache.org/blog/2017/02/13/stateful-processing.html > >> > > https://beam.apache.org/blog/2017/08/28/timely-processing.html > >> > > > >> > > Thanks, > >> > > Max > >> > >
