void ExecuteInflationRateCalactor(InflationRateCalactorBase calculator)
 {
     if (calculator == null)
     {
         throw new ArgumentNullException("calculator");
     }
     try
     {
         calculator.GetInflationRate();
     }
     catch (NotImplementedException) {}
 }
 public void Initialize()
 {
     c1 = new GdpInflationRateCalactor();
     c2 = new CpiInflationRateCalactor();
     c3 = new PpiInflationRateCalactor();
 }