88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
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/********************************************************************
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Copyright (c) 1999-2000 Microsoft Corporation
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Module Name:
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pfdb.h
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Abstract:
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definition for the class that encapsulates all DB access
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Revision History:
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DerekM created 05/01/99
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DerekM modified 02/24/00
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DerekM modified 03/24/00
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********************************************************************/
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#ifndef PFDB_H
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#define PFDB_H
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#include "util.h"
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#include "adoint.h"
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/////////////////////////////////////////////////////////////////////////////
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// constants
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const DWORD c_cInitialProps = 16;
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/////////////////////////////////////////////////////////////////////////////
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// CPFDB definition
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class CPFDB : private CPFGenericClassBase,
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public IUnknown
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{
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private:
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// meber data
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CommandTypeEnum m_cte;
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ADOConnection *m_pConn;
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ADOParameters *m_pParams;
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ADORecordset *m_pRS;
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ADOParameter **m_rgpParams;
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ADOCommand *m_pCmd;
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ADOFields *m_pFields;
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CComBSTR m_bstrCmd;
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CComBSTR m_bstrConn;
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DWORD m_cSlots;
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DWORD m_iLastSlot;
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DWORD m_cRef;
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BOOL m_fNeedReset;
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// internal methods
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HRESULT GetData(VARIANT &varField, VARIANT *pvarData);
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HRESULT GetOutParam(VARIANT &varParam, VARIANT *pvarData, VARTYPE vt);
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HRESULT TestConnAndRefresh(void);
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HRESULT AddParameterObj(DWORD iPos);
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void Cleanup(void);
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public:
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CPFDB(void);
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~CPFDB(void);
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static CPFDB *CreateInstance(void) { return new CPFDB(); }
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STDMETHOD(QueryInterface)(REFIID, LPVOID *) { return E_NOTIMPL; }
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STDMETHOD_(ULONG, AddRef)(void);
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STDMETHOD_(ULONG, Release)(void);
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HRESULT Reset(void);
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HRESULT Init(LPCWSTR wszConn, DWORD dwTimeout = 300);
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HRESULT Init(ADOConnection *pConn, DWORD dwTimeout = 300,
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BSTR bstrConn = NULL);
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HRESULT Begin(LPCWSTR wszCmd, CommandTypeEnum cte = adCmdText);
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HRESULT AddInParam(VARIANT &varData, DataTypeEnum dtADO, DWORD iPos = -1);
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HRESULT AddOutParam(DataTypeEnum dtADO, DWORD iPos = -1,
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BOOL fSPRetVal = FALSE, DWORD cchSize = 0);
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HRESULT Execute(BOOL fWantRS = TRUE);
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HRESULT GetOutParam(BSTR bstrParam, VARIANT *pvarData, VARTYPE vt = VT_ILLEGAL);
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HRESULT GetOutParam(DWORD iParam, VARIANT *pvarData, VARTYPE vt = VT_ILLEGAL);
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HRESULT GetErrors(ADOErrors **ppErrs);
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HRESULT GetNextRow(void);
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HRESULT GetData(BSTR bstrField, VARIANT *pvarData);
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HRESULT GetData(DWORD iField, VARIANT *pvarData);
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};
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#endif
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