odbcpp: src/handle.cpp Source File

00001 //
00002 // File:        src/handle.cpp
00003 // Object:      Implementation of the low level handle object
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 #include        "odbcpp/handle.h"
00025 #include        <iostream>
00026 
00027 
00028 
00029 namespace odbcpp
00030 {
00031 
00032 
00033 
00131 handle::handle(SQLSMALLINT handle_type) :
00132         f_handle(SQL_NULL_HANDLE),
00133         f_handle_type(handle_type)
00134         //f_diag -- auto-init
00135 {
00136 }
00137 
00138 
00150 handle::~handle()
00151 {
00152         // we cannot check for errors since we're in
00153         // a destructor and we cannot throw from here
00154         SQLFreeHandle(f_handle_type, f_handle);
00155 }
00156 
00157 
00184 SQLRETURN handle::check(SQLRETURN return_code, handle *parent) const
00185 {
00186         // no error and no info
00187         if(return_code == SQL_SUCCESS) {
00188                 diagnostic d;
00189                 f_diag = d;
00190                 return return_code;
00191         }
00192 
00193         // retrieve a copy of the diagnostic
00194         diagnostic d(f_handle_type, f_handle, parent);
00195         f_diag = d;
00196 
00197         // an error or just success with info?
00198         if(return_code == SQL_SUCCESS_WITH_INFO) {
00199                 return return_code;
00200         }
00201 
00202 //std::cerr << "return code is " << return_code << "\n";
00203 
00204         throw odbcpp_error(f_diag);
00205         /*NOTREACHED*/
00206 }
00207 
00208 
00209 
00228 }       // namespace odbcpp