This controller implementation provides a default URL format
/<prefix>/id_<id>(/view_<view>)
and a way to handle those urls passing the content id and optionally the view name to the content and
view layers of the framework.
This class represents the necessary adapter between generic template lookup and the spring view layer
for internal resources - namely JSPs - used as templates.
Value to be used if there is not view in hash tables and the like where the use of null would not indicate
if there is no view or if we didn't look it up up to now.