This type of development style (http://martinfowler.com/eaaCatalog/serviceLayer.html http://martinfowler.com/eaaCatalog/serviceLayer.html) is quite well-known i

This type of development style (http://martinfowler.com/eaaCatalog/serviceLayer.html http://martinfowler.com/eaaCatalog/serviceLayer.html) is quite well-known in the Java world yet unfortunately people always think that the technique is overkill (in reality, it's really really not overkill, it's only overkill if you force it to be).