include/SqlOdbcConnection.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Prabakaran Thirumalai   *
   3  *   praba_tuty@yahoo.com   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifndef SQLODBCCONNECTION_H
  21 #define SQLODBCCONNECTION_H
  22 #include <CSql.h>
  23 #include <AbsSqlConnection.h>
  24 #include <SqlFactory.h>
  25 #include <sql.h>
  26 #include <sqlext.h>
  27
  28 #ifdef WINNT
  29 typedef signed short int        SWORD;
  30 #endif
  31
  32 struct SQLFuncPtrs{
  33     SQLRETURN (*SQLAllocHandlePtr)(SQLSMALLINT, SQLHANDLE, SQLHANDLE*);
  34     SQLRETURN (*SQLSetEnvAttrPtr)(SQLHENV, SQLINTEGER, SQLPOINTER, SQLINTEGER);
  35     SQLRETURN (*SQLDriverConnectPtr)(SQLHDBC, SQLHWND, SQLCHAR*, SQLSMALLINT, SQLCHAR*, SQLSMALLINT, SQLSMALLINT*, SQLUSMALLINT);
  36     SQLRETURN (*SQLGetDiagRecPtr)(SQLSMALLINT, SQLHANDLE, SQLSMALLINT, SQLCHAR*, SQLINTEGER*, SQLCHAR*, SQLSMALLINT, SQLSMALLINT*);
  37     SQLRETURN (*SQLSetConnectAttrPtr)(SQLHDBC, SQLINTEGER, SQLPOINTER, SQLINTEGER);
  38     SQLRETURN (*SQLFreeHandlePtr)(SQLSMALLINT, SQLHANDLE);
  39     SQLRETURN (*SQLTransactPtr)(SQLHENV, SQLHDBC, SQLUSMALLINT);
  40
  41     SQLRETURN (*SQLExecDirectPtr)(SQLHSTMT, SQLCHAR*, SQLINTEGER);
  42     SQLRETURN (*SQLPreparePtr)(SQLHSTMT, SQLCHAR*, SQLINTEGER);
  43     SQLRETURN (*SQLNumResultColsPtr)(SQLHSTMT, SQLSMALLINT*);
  44     SQLRETURN (*SQLDescribeColPtr)(SQLHSTMT, SQLUSMALLINT, SQLCHAR*, SQLSMALLINT, SQLSMALLINT*, SQLSMALLINT*, SQLULEN*,SQLSMALLINT*, SQLSMALLINT*);
  45     SQLRETURN (*SQLBindColPtr)(SQLHSTMT, SQLUSMALLINT, SQLSMALLINT, SQLPOINTER, SQLLEN, SQLLEN*);
  46     SQLRETURN (*SQLNumParamsPtr)(SQLHSTMT, SQLSMALLINT*);
  47     SQLRETURN (*SQLDescribeParamPtr)(SQLHSTMT, SQLUSMALLINT, SQLSMALLINT*, SQLULEN*, SQLSMALLINT*, SQLSMALLINT*);
  48     SQLRETURN (*SQLBindParameterPtr)( SQLHSTMT, SQLUSMALLINT, SQLSMALLINT, SQLSMALLINT, SQLSMALLINT, SQLULEN, SQLSMALLINT, SQLPOINTER, SQLLEN, SQLLEN*);
  49     SQLRETURN (*SQLExecutePtr)(SQLHSTMT);
  50     SQLRETURN (*SQLRowCountPtr)(SQLHSTMT, SQLLEN*);
  51     SQLRETURN (*SQLFetchPtr)(SQLHSTMT);
  52     SQLRETURN (*SQLFetchScrollPtr)(SQLHSTMT, SQLSMALLINT, SQLLEN);
  53     SQLRETURN (*SQLCloseCursorPtr)(SQLHSTMT);
  54     SQLRETURN (*SQLPrimaryKeysPtr)( SQLHSTMT, SQLCHAR*, SQLSMALLINT, SQLCHAR*, SQLSMALLINT, SQLCHAR*, SQLSMALLINT);
  55     SQLRETURN (*SQLGetDataPtr)(SQLHSTMT,SQLUSMALLINT,SQLSMALLINT,SQLPOINTER, SQLLEN,SQLLEN*);
  56     SQLRETURN (*SQLDisconnectPtr)(SQLHDBC);
  57     SQLRETURN (*SQLTablesPtr)(SQLHSTMT ,SQLCHAR *, SQLSMALLINT , SQLCHAR * , SQLSMALLINT, SQLCHAR *,  SQLSMALLINT, SQLCHAR*,SQLSMALLINT);
  58     SQLRETURN (*SQLProcedureColumnsPtr)(SQLHSTMT, SQLCHAR *, SQLSMALLINT, SQLCHAR *, SQLSMALLINT, SQLCHAR *, SQLSMALLINT,SQLCHAR *, SQLSMALLINT);
  59 };
  60
  61 /**
  62 * @class SqlOdbcConnection
  63 *
  64 */
  65 //class SqlOdbcSym {
  66 //    public:
  67 //};
  68
  69 class DllExport SqlOdbcConnection : public AbsSqlConnection
  70 {
  71     Connection dummyConn;
  72     char errState[STATE_LENGTH];
  73     char dsName[IDENTIFIER_LENGTH];
  74     bool isConnOpen;
  75     TDBInfo tdbName;
  76     public:
  77     SQLHENV envHdl;
  78     SQLHDBC dbHdl;
  79     char dsString[IDENTIFIER_LENGTH];
  80     IsolationLevel prevIsoLevel;
  81     SqlOdbcConnection()
  82     {
  83         strcpy(errState,"00000");
  84         innerConn = NULL;
  85         tdbName = mysql;
  86         prevIsoLevel = READ_COMMITTED;
  87         dsName[0]='\0';
  88         isConnOpen = false;
  89     }
  90     ~SqlOdbcConnection(){}
  91
  92     void setDsName(char *dsname){ strcpy(dsName,dsname);}
  93     char *getDsName(){return dsName;}
  94     void setTrDbName(char *name);
  95     TDBInfo getTrDbName(){return tdbName;}
  96     static bool symbolsLoaded;
  97     static struct SQLFuncPtrs ODBCFuncPtrs;
  98
  99     void setErrorState( SQLHDBC dbc);
 100     DbRetVal loadSymbols();
 101
 102     //Note::forced to implement this as it is pure virtual in base class
 103     Connection& getConnObject(){  return dummyConn; }
 104     bool isConnectionOpen() { if (isConnOpen) return true; return false; }
 105
 106     DbRetVal connect (char *user, char * pass);
 107
 108     DbRetVal disconnect();
 109
 110     DbRetVal commit();
 111
 112     DbRetVal rollback();
 113
 114     DbRetVal beginTrans (IsolationLevel isoLevel, TransSyncMode mode);
 115
 116     friend class SqlFactory;
 117 };
 118
 119 #endif