| FDO .NET API Reference | Feature Data Objects |
00001 /* 00002 * Copyright (C) 2004-2006 Autodesk, Inc. 00003 * 00004 * This library is free software; you can redistribute it and/or 00005 * modify it under the terms of version 2.1 of the GNU Lesser 00006 * General Public License as published by the Free Software Foundation. 00007 * 00008 * This library is distributed in the hope that it will be useful, 00009 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00010 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00011 * Lesser General Public License for more details. 00012 * 00013 * You should have received a copy of the GNU Lesser General Public 00014 * License along with this library; if not, write to the Free Software 00015 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00016 * 00017 */ 00018 00019 #pragma once 00020 00021 #include "FDO\Expression\mgLiteralValue.h" 00022 #include "FDO\Schema\mgDataType.h" 00023 00024 class FdoDataValue; 00025 00026 BEGIN_NAMESPACE_OSGEO_FDO_EXPRESSION 00027 00028 /// \ingroup (OSGeoFDOExpression) 00029 /// \brief 00030 /// The DataValue class derives from LiteralValue and represents a literal 00031 /// value such as a string or a number. 00032 public __gc class DataValue : public NAMESPACE_OSGEO_FDO_EXPRESSION::LiteralValue 00033 { 00034 public: 00035 /// \brief 00036 /// Constructs an instance of a null DataValue using the specified arguments. 00037 /// 00038 /// \param dataType 00039 /// Input data type 00040 /// 00041 /// \return 00042 /// Returns nothing 00043 /// 00044 DataValue(NAMESPACE_OSGEO_FDO_SCHEMA::DataType dataType); 00045 00046 /// \brief 00047 /// Constructs an instance of an BooleanValue using the specified argument. 00048 /// 00049 /// \param value 00050 /// Input a Boolean value 00051 /// 00052 /// \return 00053 /// Returns an BooleanValue 00054 /// 00055 DataValue(System::Boolean value); 00056 00057 /// \brief 00058 /// Constructs an instance of an ByteValue using the specified argument. 00059 /// 00060 /// \param value 00061 /// Input a byte 00062 /// 00063 /// \return 00064 /// Returns an ByteValue 00065 /// 00066 DataValue(System::Byte value); 00067 00068 /// \brief 00069 /// Constructs an instance of an DateTimeValue using the specified argument. 00070 /// 00071 /// \param value 00072 /// Input a DateTime 00073 /// 00074 /// \return 00075 /// Returns an DateTimeValue 00076 /// 00077 DataValue(System::DateTime value); 00078 00079 /// \brief 00080 /// Constructs an instance of an DecimalValue or DoubleValue using 00081 /// the specified arguments. 00082 /// 00083 /// \param value 00084 /// Input a double 00085 /// \param dataType 00086 /// Input a data type 00087 /// 00088 /// \return 00089 /// Returns an DecimalValue or DoubleValue 00090 /// 00091 DataValue(System::Double value, NAMESPACE_OSGEO_FDO_SCHEMA::DataType dataType); 00092 00093 /// \brief 00094 /// Constructs an instance of an Int16Value using the specified argument. 00095 /// 00096 /// \param value 00097 /// Input a 16 bit integer 00098 /// 00099 /// \return 00100 /// Returns an Int16Value 00101 /// 00102 DataValue(System::Int16 value); 00103 00104 /// \brief 00105 /// Constructs an instance of an Int32Value using the specified argument. 00106 /// 00107 /// \param value 00108 /// Input a 32 bit integer 00109 /// 00110 /// \return 00111 /// Returns an Int32Value 00112 /// 00113 DataValue(System::Int32 value); 00114 00115 /// \brief 00116 /// Constructs an instance of an Int64Value using the specified argument. 00117 /// 00118 /// \param value 00119 /// Input a 64 bit integer 00120 /// 00121 /// \return 00122 /// Returns an Int64Value 00123 /// 00124 DataValue(System::Int64 value); 00125 00126 /// \brief 00127 /// Constructs an instance of an SingleValue using the specified argument. 00128 /// 00129 /// \param value 00130 /// Input a single precision floating point value 00131 /// 00132 /// \return 00133 /// Returns an SingleValue 00134 /// 00135 DataValue(System::Single value); 00136 00137 /// \brief 00138 /// Constructs an instance of an StringValue using the specified argument. 00139 /// 00140 /// \param value 00141 /// Input a character string 00142 /// 00143 /// \return 00144 /// Returns an StringValue 00145 /// 00146 DataValue(System::String* value); 00147 00148 /// \brief 00149 /// Constructs an instance of an BLOBValue or CLOBValue using the specified arguments. 00150 /// 00151 /// \param value 00152 /// Input a byte array 00153 /// 00154 /// \param dataType 00155 /// Input the type of value to create 00156 /// 00157 /// \return 00158 /// Returns an BLOBValue or an CLOBValue 00159 /// 00160 DataValue(System::Byte value [], NAMESPACE_OSGEO_FDO_SCHEMA::DataType dataType); 00161 00162 /// \brief 00163 /// Gets the data type of the DataValue. 00164 /// 00165 /// \return 00166 /// Returns an DataType 00167 /// 00168 __property NAMESPACE_OSGEO_FDO_SCHEMA::DataType get_DataType(); 00169 00170 /// \brief 00171 /// Returns true if the DataValue represents a null value. 00172 /// 00173 /// \return 00174 /// Returns true if the DataValue represents a null value 00175 /// 00176 System::Boolean IsNull(); 00177 00178 /// \brief 00179 /// Sets the DataValue to a null value of the specified type. 00180 /// 00181 /// \return 00182 /// Returns nothing 00183 /// 00184 System::Void SetNull(); 00185 00186 /// \brief 00187 /// Constructs a DataValue object based on an unmanaged instance of the object 00188 /// 00189 /// \param unmanaged 00190 /// Input A Pointer to the unmanaged object. 00191 /// 00192 /// \param autoDelete 00193 /// Input Indicates if the constructed object should be automatically deleted 00194 /// once it no longer referenced. 00195 /// 00196 DataValue(System::IntPtr unmanaged, System::Boolean autoDelete); 00197 00198 public private: 00199 inline FdoDataValue* GetImpObj(); 00200 }; 00201 END_NAMESPACE_OSGEO_FDO_EXPRESSION 00202 00203
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