| 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\mgDataValue.h" 00022 00023 class FdoLOBValue; 00024 00025 BEGIN_NAMESPACE_OSGEO_FDO_SCHEMA 00026 public __value enum DataType; 00027 END_NAMESPACE_OSGEO_FDO_SCHEMA 00028 00029 BEGIN_NAMESPACE_OSGEO_FDO_EXPRESSION 00030 00031 public __gc __interface IExpressionProcessor; 00032 00033 /// \ingroup (OSGeoFDOExpression) 00034 /// \brief 00035 /// The LOBValue class derives from DataValue and represents a literal 00036 /// BLOB value. 00037 public __gc class LOBValue : public NAMESPACE_OSGEO_FDO_EXPRESSION::DataValue 00038 { 00039 public: 00040 /// \brief 00041 /// Transforms the FDO LOB value into a byte array. 00042 /// 00043 /// \param value 00044 /// Input an FDO LOBValue object 00045 /// 00046 /// \return 00047 /// Returns a byte array 00048 /// 00049 static System::Byte op_Explicit( NAMESPACE_OSGEO_FDO_EXPRESSION::LOBValue* value ) []; 00050 00051 /// \brief 00052 /// Gets the data type of the LOBValue. 00053 /// 00054 /// \return 00055 /// Returns an DataType 00056 /// 00057 __property NAMESPACE_OSGEO_FDO_SCHEMA::DataType get_DataType(); 00058 00059 /// \brief 00060 /// Gets the LOB data. 00061 /// 00062 /// \return 00063 /// Returns a byte array 00064 /// 00065 __property System::Byte get_Data() []; 00066 00067 /// \brief 00068 /// Sets the LOB data. 00069 /// 00070 /// \param value 00071 /// Input an array of bytes 00072 /// 00073 /// \return 00074 /// Returns nothing 00075 /// 00076 __property System::Void set_Data(System::Byte value []); 00077 00078 /// \brief 00079 /// Sets the LOBValue to a null value. 00080 /// 00081 /// \return 00082 /// Returns nothing 00083 /// 00084 System::Void SetNull(); 00085 00086 /// \brief 00087 /// Overrides Expression.Process to pass the LOBValue to the appropriate 00088 /// expression processor operation. 00089 /// 00090 /// \param processor 00091 /// Input the IExpressionProcessor 00092 /// 00093 /// \return 00094 /// Returns nothing 00095 /// 00096 System::Void Process(NAMESPACE_OSGEO_FDO_EXPRESSION::IExpressionProcessor* processor); 00097 00098 /// \brief 00099 /// Returns the well defined text representation of this expression. 00100 /// 00101 /// \return 00102 /// Returns a text string 00103 /// 00104 System::String* ToString(); 00105 00106 /// \brief 00107 /// Constructs a LOBValue object based on an unmanaged instance of the object 00108 /// 00109 /// \param unmanaged 00110 /// Input A Pointer to the unmanaged object. 00111 /// 00112 /// \param autoDelete 00113 /// Input Indicates if the constructed object should be automatically deleted 00114 /// once it no longer referenced. 00115 /// 00116 LOBValue(System::IntPtr unmanaged, System::Boolean autoDelete); 00117 00118 public private: 00119 inline FdoLOBValue* GetImpObj(); 00120 }; 00121 END_NAMESPACE_OSGEO_FDO_EXPRESSION 00122 00123
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