In REST Web Service, is having 3 layers - Controller, BO (Service) and DAO a standard way? Why do we need a separate BO layer. Why not to write our logic in Controller class which, calls different DAO classes ???
In REST Web Service, is having 3 layers - Controller, BO (Service) and DAO a standard way? Why do we need a separate BO layer. Why not to write our logic in Controller class which, calls different DAO classes ???
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