http://paste.lisp.org/display/87611#2
"infinite seq of swing events" On Thu, Nov 12, 2009 at 1:48 AM, Jeff Rose <ros...@gmail.com> wrote: > On Nov 12, 1:22 am, nchubrich <nicholas.chubr...@gmail.com> wrote: >> I'm curious what the best idiomatic way of handling events is (e.g. >> receiving a series of messages and dispatching functions on the basis >> of the messages). One could use the 'experimental' add-watch(er) >> functions. But it might also be nice to do something stream-oriented, >> e.g. a doseq on a stream of events. But the trouble is this dies as >> soon as the events stop arriving. Can event seqs be 'kept alive' >> somehow (preferably without blocking)? >> This seems like a pretty basic capability, so I figured it was >> worth provoking discussion about. >> >> Nick. > > I think the typical way to handle this currently is by using a typical > handler function that is called whenever an event is fired. If the > events will be long running then you can use agents or a thread pool > (executor framework). If you need to dispatch events to other > handlers then use multi-methods. > > It seems that what you are really asking for though, is a way to treat > a stream of events as a sequence. This is what they recently > introduced in .net land, with the RX framework: > > http://www.leading-edge-dev.de/?p=501 > > Given that clojure has a nice library of sequence manipulation and > predicate functions, I think doing something similar could be useful. > I don't have a clear sense for how it would work though. You could > form a pipeline of sequence processing functions that get called > whenever a new event is fired, maybe by using a promise that gets > fulfilled when the event hits the pipeline? > > -Jeff > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
