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 #ifndef _SHPCOMPAREHANDLER_H
00019 #define _SHPCOMPAREHANDLER_H
00020 
00021 #include "stdafx.h"
00022 
00023 class ShpCompareHandler: public FdoIDisposable
00024 {
00025 private:
00026     ShpCompareHandler();
00027 
00028 protected:
00029     virtual ~ShpCompareHandler();
00030 
00031     // dispose this object
00032     virtual void Dispose() { delete this; }
00033 
00034 public:
00035     /// <summary>The factory function that can be used to create new instance of this class.</summary>
00036     /// <returns>Returns a new instance of theShpCompareHandler class.</returns> 
00037     static ShpCompareHandler* Create();
00038 
00039     /// <summary>Compares double values.</summary>
00040     /// <param name="name">Is the property name.</param> 
00041     /// <param name="val1">Is the value of the first object.</param> 
00042     /// <param name="val1">Is the value of the second object.</param> 
00043     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00044     virtual int Compare( const wchar_t* name, double val1, double val2 );
00045 
00046     /// <summary>Compares float values.</summary>
00047     /// <param name="name">Is the property name.</param> 
00048     /// <param name="val1">Is the value of the first object.</param> 
00049     /// <param name="val1">Is the value of the second object.</param> 
00050     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00051     virtual int Compare( const wchar_t* name, float val1, float val2 );
00052 
00053     /// <summary>Compares int64 values.</summary>
00054     /// <param name="name">Is the property name.</param> 
00055     /// <param name="val1">Is the value of the first object.</param> 
00056     /// <param name="val1">Is the value of the second object.</param> 
00057     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00058     virtual int Compare( const wchar_t* name, FdoInt64 val1, FdoInt64 val2 );
00059 
00060     /// <summary>Compares int32 values.</summary>
00061     /// <param name="name">Is the property name.</param> 
00062     /// <param name="val1">Is the value of the first object.</param> 
00063     /// <param name="val1">Is the value of the second object.</param> 
00064     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00065     virtual int Compare( const wchar_t* name, FdoInt32 val1, FdoInt32 val2 );
00066 
00067     /// <summary>Compares int16 values.</summary>
00068     /// <param name="name">Is the property name.</param> 
00069     /// <param name="val1">Is the value of the first object.</param> 
00070     /// <param name="val1">Is the value of the second object.</param> 
00071     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00072     virtual int Compare( const wchar_t* name, FdoInt16 val1, FdoInt16 val2 );
00073 
00074     /// <summary>Compares string values.</summary>
00075     /// <param name="name">Is the property name.</param> 
00076     /// <param name="val1">Is the value of the first object.</param> 
00077     /// <param name="val1">Is the value of the second object.</param> 
00078     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00079     virtual int Compare( const wchar_t* name, const wchar_t* val1, const wchar_t* val2 );
00080 
00081     /// <summary>Compares date time values.</summary>
00082     /// <param name="name">Is the property name.</param> 
00083     /// <param name="val1">Is the value of the first object.</param> 
00084     /// <param name="val1">Is the value of the second object.</param> 
00085     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00086     virtual int Compare( const wchar_t* name, FdoDateTime val1, FdoDateTime val2 );
00087 
00088     /// <summary>Compares unsigned char values.</summary>
00089     /// <param name="name">Is the property name.</param> 
00090     /// <param name="val1">Is the value of the first object.</param> 
00091     /// <param name="val1">Is the value of the second object.</param> 
00092     /// <returns>Returns a positive value if val1 is greater than val2, negative if val1 is smaller than val2 or zero if both val1 and val2 are equal.</returns> 
00093     virtual int Compare( const wchar_t* name, unsigned char val1, unsigned char val2 );
00094 
00095 };
00096 
00097 
00098 #endif
00099 
00100