Hi, I'm a Flash developer migrating to Flex and Cairngorm. I want to have my Cairngorm ServiceLocator use AMF Remoting as the first option but then fall back to a SOAP webservice if that fails. Both services have the same methods/operations as they are implemented in ASP.Net with WebOrb.
I can define both the Remoting service and the webservice in the Services.mxml file in the usual way and can access both from my delegates and it all works fine. Here's my problem: The Cairngorm examples I have seen all show that the generic getService() method is depreciated and I should use getRemoteObject() or getWebService() from IServiceLocator. Using that approach I could put the logic to decide which service to use into each and every delegate but it would make more sense to have it centralised in the Services.mxml file and have this serve up the currently used service to my delegate. Since they both inherit the same methods, I should be able to call a generic services object using polymorphism and do some good OOP in the process. So here's my question: How would you experienced Cairngorm users out there approach this? - Should I write a new method in my Services.mxml component, which switches between services by binding it to a variable indicating which service type to use in the ModelLocator? - Should I scrap the mxml version and extend ServiceLocator in Actionscript? - Should I abandon this bit of the Cairngorm framework swc interfaces and write this from scratch? - Any other suggestions/warnings? Has anyone done something like this before? Thanks in anticipation of your help!
