[basex-talk] Making store reactive

Dear Christian and BaseX developers, just wondering if adding something like the following would be hard to implement. /store:observe($key as xs:string, $observers as function(*)*) / with $observers being something like /function($key as xs:string)./ The semantics is to call the registered observers whenever a value associated with the key in the store changes (put, remove, clear, ..). This would allow for nicely decoupled observer - notification pattern. Does it make sense? Regards, Marco.