Hello, Looking for opinions :)
I'm currently building an event-driven service which consumes events using handlers. Now, the idea is to define a set of handlers (functions of type Event->Unit) in different parts of the service, which are then invoked when an event comes into the system. The dependencies are in the following order: [ns.event-processor] -> [ns.handlers] <- [ns.handler-1], [ns.handler-2] Definition of a handler in *ns.handler-1* looks like this: (ns.handlers/defhandler Handler1 (on :EventA [event] (do something)) (on :EventB [event] (do something else))) The *defhandler* macro registers the handler in an atom, which is then queried when the *ns.event-processor* receives an event. You might have already figured out that I run into problems when the event processor is invoked and not all of the handler namespaces have been loaded yet. Currently I resolve this by explicitly requiring all of the namespaces which invoke *defhandler* from the main application namespace which constructs the running system. It seems that I'm looking for some cross-ns var discovery mechanism, something like classpath scanning in Java (which smells like an anti-pattern in Clojure). I was wandering whether I'm missing some cleaner/better approach? Thanks, Vadim -- -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
