odbcpp: include/odbcpp/handle.h Source File

00001 //
00002 // File:        include/odbcpp/handle.h
00003 // Object:      Base class for the different handles
00004 // Project:     http://www.m2osw.com/odbcpp
00005 // Author:      alexis_wilke@sourceforge.net
00006 //
00007 // Copyright (C)   2008 Made to Order Software Corp.
00008 //
00009 // This program is free software: you can redistribute it and/or modify
00010 // it under the terms of the GNU General Public License as published by
00011 // the Free Software Foundation, either version 3 of the License, or
00012 // (at your option) any later version.
00013 //
00014 // This program is distributed in the hope that it will be useful,
00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017 // GNU General Public License for more details.
00018 //
00019 // You should have received a copy of the GNU General Public License
00020 // along with this program.  If not, see <http://www.gnu.org/licenses/>
00021 // or <http://gpl3.m2osw.com/>.
00022 //
00023 
00024 #ifndef ODBCPP_HANDLE
00025 #define ODBCPP_HANDLE
00026 
00027 #include        "exception.h"
00028 #include        "object.h"
00029 
00030 namespace odbcpp
00031 {
00032 
00033 class handle : public object
00034 {
00035 public:
00036                                 handle(SQLSMALLINT handle_type);
00037                                 ~handle();
00038 
00039         SQLRETURN               check(SQLRETURN return_code, handle *parent = 0) const;
00040 
00041         SQLHANDLE               get_handle() const { return f_handle; }
00042         SQLSMALLINT             get_handle_type() const { return f_handle_type; }
00043         const diagnostic&       get_diagnostic() const { return f_diag; }
00044 
00045 protected:
00046         SQLHANDLE               f_handle;
00047         const SQLSMALLINT       f_handle_type;
00048 
00049 private:
00051                                 handle(const handle& hdl) : f_handle(SQL_NULL_HANDLE), f_handle_type(SQL_HANDLE_ENV) {}
00053         handle&                 operator = (const handle& hdl) { return *this; }
00054 
00055         mutable diagnostic      f_diag;
00056 };
00057 
00058 
00059 
00060 }       // namespace odbcpp
00061 
00062 #endif          // #ifndef ODBCPP_HANDLE