Hi,
How to provide a default implementation of Service Interface. I am trying to achieve what Oliver Gierke has explained in "Whoops where did my architecture go" presentation in terms of modularity. Let say I have User Interface which is accessing one of the service API and suppose the service implementation is currently is not accessible but it shall return with default implementation of service Interface. Because User interface is accessing the Service API and it's no way know about the implementation of the Service API. How to achieve this?