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70 lines
1.2 KiB
70 lines
1.2 KiB
//-----------------------------------------------------------------------------
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//
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// File: dbid.h
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// Copyright (C) 1994-1997 Microsoft Corporation
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// All rights reserved.
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//
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//
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//
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//-----------------------------------------------------------------------------
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#ifndef DBID_H
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#define DBID_H
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//
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// represents a database id
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//
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#pragma warning(disable: 4275) // non dll-interface class 'foo' used
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// as base for dll-interface class 'bar'
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class LTAPIENTRY DBID : public CObject
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{
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public:
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//
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// ctors
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//
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DBID();
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DBID(const DBID& id);
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DBID(long l);
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~DBID();
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//
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// debug methods
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//
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void AssertValid() const;
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//
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// 'get like' methods
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//
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BOOL NOTHROW IsNull() const;
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NOTHROW operator long () const;
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int NOTHROW operator==(const DBID &) const;
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int NOTHROW operator!=(const DBID &) const;
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//
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// 'put like' methods
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//
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void NOTHROW operator=(const DBID&);
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void NOTHROW Set(long);
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void NOTHROW Clear();
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protected:
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long m_l;
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private:
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DEBUGONLY(static CCounter m_UsageCounter);
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};
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#pragma warning(default: 4275)
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typedef CArray<DBID, DBID &> CDBIDArray;
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#if !defined(_DEBUG) || defined(IMPLEMENT)
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#include "dbid.inl"
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#endif
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const extern LTAPIENTRY DBID g_NullDBID;
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#endif // DBID_H
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