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  1. public class LoadPaymentMethodOperation
  2. 	{
  3. 		private readonly Employee employee;
  4. 		private readonly string methodCode;
  5. 		private readonly SqlConnection connection;
  6. 		private PaymentMethod method;
  7. 		private delegate void PaymentMethodCreator(DataRow row);
  8. 		private PaymentMethodCreator paymentMethodCreator;
  9. 		private string tableName;
  10.  
  11. 		public LoadPaymentMethodOperation(Employee employee, string methodCode, SqlConnection connection)
  12. 		{
  13. 			this.employee = employee;
  14. 			this.methodCode = methodCode;
  15. 			this.connection = connection;
  16. 		}
  17.  
  18. 		public void Execute()
  19. 		{
  20. 			Prepare();
  21. 			DataRow row = LoadData();
  22. 			CreatePaymentMethod(row);
  23. 		}
  24.  
  25. 		public void CreatePaymentMethod(DataRow row)
  26. 		{
  27. 			paymentMethodCreator(row);
  28. 		}
  29.  
  30. 		public void Prepare()
  31. 		{
  32. 			if(methodCode.Equals("hold"))
  33. 				paymentMethodCreator = new PaymentMethodCreator(CreateHoldMethod);
  34. 			else if(methodCode.Equals("directdeposit"))
  35. 			{
  36. 				tableName = "DirectDepositAccount";
  37. 				paymentMethodCreator = new PaymentMethodCreator(CreateDirectDepositMethod);
  38. 			}
  39. 			else if(methodCode.Equals("mail"))
  40. 			{
  41. 				tableName = "PaycheckAddress";
  42. 				paymentMethodCreator = new PaymentMethodCreator(CreateMailMethod);
  43. 			}
  44. 		}
  45.  
  46. 		private DataRow LoadData()
  47. 		{
  48. 			if(tableName != null)
  49. 				return LoadEmployeeOperation.LoadDataFromCommand(Command);
  50. 			else
  51. 				return null;
  52. 		}
  53.  
  54. 		public PaymentMethod Method
  55. 		{
  56. 			get { return method; }
  57. 		}
  58.  
  59. 		public SqlCommand Command
  60. 		{
  61. 			get
  62. 			{
  63. 				string sql = String.Format("select * from {0} where EmpId=@EmpId", tableName);
  64. 				SqlCommand command = new SqlCommand(sql, connection);
  65. 				command.Parameters.Add("@EmpId", employee.EmpId);
  66. 				return command;
  67. 			}
  68. 		}
  69.  
  70. 		public void CreateDirectDepositMethod(DataRow row)
  71. 		{
  72. 			string bank = row["Bank"].ToString();
  73. 			string account = row["Account"].ToString();
  74. 			method = new DirectDepositMethod(bank, account);
  75. 		}
  76.  
  77. 		private void CreateHoldMethod(DataRow row)
  78. 		{
  79. 			method = new HoldMethod();
  80. 		}
  81.  
  82. 		private void CreateMailMethod(DataRow row)
  83. 		{
  84. 			string address = row["Address"].ToString();
  85. 			method = new MailMethod(address);
  86. 		}
  87. 	}
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https://ideone.com/rIC11t
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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