mcs/class/System.Data.OracleClient/System.Data.OracleClient/OracleMonthSpan.cs

   1 //
   2 // OracleMonthSpan.cs
   3 //
   4 // Part of the Mono class libraries at
   5 // mcs/class/System.Data.OracleClient/System.Data.OracleClient
   6 //
   7 // Assembly: System.Data.OracleClient.dll
   8 // Namespace: System.Data.OracleClient
   9 //
  10 // Author: Tim Coleman <tim@timcoleman.com>
  11 //
  12 // Copyright (C) Tim Coleman, 2003
  13 //
  14 // Licensed under the MIT/X11 License.
  15 //
  16
  17 using System;
  18 using System.Data.SqlTypes;
  19
  20 namespace System.Data.OracleClient {
  21         public struct OracleMonthSpan : IComparable, INullable
  22         {
  23                 #region Fields
  24
  25                 public static readonly OracleMonthSpan MaxValue = new OracleMonthSpan (176556);
  26                 public static readonly OracleMonthSpan MinValue = new OracleMonthSpan (-176556);
  27                 public static readonly OracleMonthSpan Null = new OracleMonthSpan ();
  28
  29                 bool notNull;
  30                 int value;
  31
  32                 #endregion // Fields
  33
  34                 #region Constructors
  35
  36                 public OracleMonthSpan (int months)
  37                 {
  38                         value = months;
  39                         notNull = true;
  40                 }
  41
  42                 public OracleMonthSpan (OracleMonthSpan from)
  43                 {
  44                         this.notNull = from.notNull;
  45                         this.value = from.value;
  46                 }
  47
  48                 public OracleMonthSpan (int years, int months)
  49                         : this (years * 12 + months)
  50                 {
  51                 }
  52
  53                 #endregion // Constructors
  54
  55                 #region Properties
  56
  57                 public bool IsNull {
  58                         get { return !notNull; }
  59                 }
  60
  61                 public int Value {
  62                         get {
  63                                 if (IsNull)
  64                                         throw new Exception ("Data is null.");
  65
  66                                 return value;
  67                         }
  68                 }
  69
  70                 #endregion // Properties
  71
  72                 #region Methods
  73
  74                 [MonoTODO]
  75                 public int CompareTo (object obj)
  76                 {
  77                         throw new NotImplementedException ();
  78                 }
  79
  80                 [MonoTODO]
  81                 public override bool Equals (object value)
  82                 {
  83                         throw new NotImplementedException ();
  84                 }
  85
  86                 public static OracleBoolean Equals (OracleMonthSpan x, OracleMonthSpan y)
  87                 {
  88                         if (x.IsNull || y.IsNull)
  89                                 return OracleBoolean.Null;
  90                         return new OracleBoolean (x.Value == y.Value);
  91                 }
  92
  93                 [MonoTODO]
  94                 public override int GetHashCode ()
  95                 {
  96                         throw new NotImplementedException ();
  97                 }
  98
  99                 public static OracleBoolean GreaterThan (OracleMonthSpan x, OracleMonthSpan y)
 100                 {
 101                         if (x.IsNull || y.IsNull)
 102                                 return OracleBoolean.Null;
 103                         return (x.value > y.value);
 104                 }
 105
 106                 public static OracleBoolean GreaterThanOrEqual (OracleMonthSpan x, OracleMonthSpan y)
 107                 {
 108                         if (x.IsNull || y.IsNull)
 109                                 return OracleBoolean.Null;
 110                         return (x.value >= y.value);
 111                 }
 112
 113                 public static OracleBoolean LessThan (OracleMonthSpan x, OracleMonthSpan y)
 114                 {
 115                         if (x.IsNull || y.IsNull)
 116                                 return OracleBoolean.Null;
 117                         return (x.value < y.value);
 118                 }
 119
 120                 public static OracleBoolean LessThanOrEqual (OracleMonthSpan x, OracleMonthSpan y)
 121                 {
 122                         if (x.IsNull || y.IsNull)
 123                                 return OracleBoolean.Null;
 124                         return (x.value <= y.value);
 125                 }
 126
 127                 public static OracleBoolean NotEquals (OracleMonthSpan x, OracleMonthSpan y)
 128                 {
 129                         if (x.IsNull || y.IsNull)
 130                                 return OracleBoolean.Null;
 131                         return (x.value != y.value);
 132                 }
 133
 134                 public static OracleMonthSpan Parse (string s)
 135                 {
 136                         return new OracleMonthSpan (Int32.Parse (s));
 137                 }
 138
 139                 public override string ToString ()
 140                 {
 141                         if (IsNull)
 142                                 return "Null";
 143                         return value.ToString ();
 144                 }
 145
 146                 #endregion // Methods
 147
 148                 #region Operators and Type Conversions
 149
 150                 public static OracleBoolean operator == (OracleMonthSpan x, OracleMonthSpan y)
 151                 {
 152                         return Equals (x, y);
 153                 }
 154
 155                 public static OracleBoolean operator > (OracleMonthSpan x, OracleMonthSpan y)
 156                 {
 157                         return GreaterThan (x, y);
 158                 }
 159
 160                 public static OracleBoolean operator >= (OracleMonthSpan x, OracleMonthSpan y)
 161                 {
 162                         return GreaterThanOrEqual (x, y);
 163                 }
 164
 165                 public static OracleBoolean operator != (OracleMonthSpan x, OracleMonthSpan y)
 166                 {
 167                         return NotEquals (x, y);
 168                 }
 169
 170                 public static OracleBoolean operator < (OracleMonthSpan x, OracleMonthSpan y)
 171                 {
 172                         return LessThan (x, y);
 173                 }
 174
 175                 public static OracleBoolean operator <= (OracleMonthSpan x, OracleMonthSpan y)
 176                 {
 177                         return LessThan (x, y);
 178                 }
 179
 180                 public static explicit operator int (OracleMonthSpan x)
 181                 {
 182                         return x.value;
 183                 }
 184
 185                 public static explicit operator OracleMonthSpan (string s)
 186                 {
 187                         return Parse (s);
 188                 }
 189
 190                 #endregion // Operators and Type Conversions
 191         }
 192 }