IBConnection.h

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#ifndef __DCL_INTERBASE_CONNECTION_H_
#define __DCL_INTERBASE_CONNECTION_H_   20020321
 
__DCL_BEGIN_NAMESPACE
 
#define ISC_STATUS_VECTOR_LENGTH 20
#define STATUS_FAILED(statusVector) (statusVector[0] == 1 && statusVector[2])
 
class IBConnection;
class IBQuery;
class IBField;
class IBParam;
 
class IBConnection : public SQL::Connection
{
    DECLARE_CLASSINFO(IBConnection)
protected:
    short           __dialect;
    isc_db_handle   __dbHandle;
    isc_tr_handle   __trHandle;
    ISC_STATUS      __status[ISC_STATUS_VECTOR_LENGTH];
    ByteString      __lastErrorMessage;
 
public:
    void setErrorStatus(SQL::Error _error,
            const wchar_t* _filename, int _line);
    void setErrorStatus(const ByteString& _message,
            const wchar_t* _filename, int _line);
 
    isc_db_handle* dbHandlePtr() { return &__dbHandle; }
    isc_tr_handle* trHandlePtr() { return &__trHandle; }
    short dialect() const { return __dialect; }
    ISC_STATUS* statusVector() { return __status; }
 
    // interface implementation
public:
    IBConnection(const wchar_t* _serverTitle);
//protected:
    virtual void destroy();
    virtual ~IBConnection();
    virtual bool __open(const char* _connString, size_t _connlen);
    virtual bool __close();
    virtual bool __execute(const char* _sql, size_t _sqllen);
    virtual bool __startTrans();
    virtual bool __commitTrans();
    virtual bool __rollbackTrans();
    virtual bool __createQueryInstance(SQL::Query** _queryHandleOut);
    virtual bool __getErrorMessage(char* _buf, size_t* _buflen);
    virtual bool __getServerInfo(char* _buf, size_t* _buflen);
};
 
inline void IBConnection::setErrorStatus(SQL::Error _error,
        const wchar_t* _filename, int _line)
{
    Connection::setErrorStatus(_error, _filename, _line);
    __lastErrorMessage.clear();
}
 
inline void IBConnection::setErrorStatus(const ByteString& _message,
        const wchar_t* _filename, int _line)
{
    Connection::setErrorStatus(SQL::eServerError, _filename, _line);
    __lastErrorMessage = _message;
}
 
#define __SET_ERROR(_error) \
    setErrorStatus(_error, __THIS_FILE__, __LINE__)
 
#define __SET_ERROR_MSG(str) \
    setErrorStatus(str, __THIS_FILE__, __LINE__)
 
__DCL_END_NAMESPACE
 
#endif  // __DCL_INTERBASE_CONNECTION_H_