136 lines
4.3 KiB
C
136 lines
4.3 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1998, Microsoft Corp. All rights reserved.
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//
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// FILE
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//
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// dsobject.h
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//
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// SYNOPSIS
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//
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// This file declares the class DBObject.
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//
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// MODIFICATION HISTORY
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//
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// 02/20/1998 Original version.
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// 10/02/1998 Allow rename through PutValue.
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// 04/13/2000 Port to ATL 3.0
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _DSOBJECT_H_
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#define _DSOBJECT_H_
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#include <dsproperty.h>
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#include <dstorex.h>
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#include <propbag.h>
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//////////
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// 'Secret' UUID used to cast an interface to the implementing DBObject.
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//////////
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class __declspec(uuid("7677647C-AA27-11D1-BB27-00C04FC2E20D")) DBObject;
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///////////////////////////////////////////////////////////////////////////////
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//
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// CLASS
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//
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// DBObject
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//
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// DESCRIPTION
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//
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// This class implements an object in an OLE-DB database. All objects
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// are also containers.
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//
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///////////////////////////////////////////////////////////////////////////////
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class DBObject
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: public CComObjectRootEx< CComMultiThreadModel >,
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public IDispatchImpl< IDataStoreObjectEx,
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&__uuidof(IDataStoreObject),
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&__uuidof(DataStore2Lib) >,
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public IDispatchImpl< IDataStoreContainerEx,
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&__uuidof(IDataStoreContainer),
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&__uuidof(DataStore2Lib) >
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{
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public:
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DECLARE_NO_REGISTRY()
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BEGIN_COM_MAP(DBObject)
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COM_INTERFACE_ENTRY_IID(__uuidof(DBObject), DBObject)
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COM_INTERFACE_ENTRY_IID(__uuidof(IDataStoreObject), IDataStoreObject)
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COM_INTERFACE_ENTRY_IID(__uuidof(IDataStoreContainer), IDataStoreContainer)
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COM_INTERFACE_ENTRY2(IDispatch, IDataStoreObject)
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END_COM_MAP()
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// Create a new DBObject
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static DBObject* createInstance(
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OleDBDataStore* owner,
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IDataStoreContainer* container,
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ULONG uniqueID,
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PCWSTR relativeName
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);
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// Create a child DBObject.
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IDataStoreObject* spawn(ULONG childID, BSTR childName);
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//////////
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// IDataStoreObject
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//////////
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STDMETHOD(get_Name)(/*[out, retval]*/ BSTR* pVal);
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STDMETHOD(get_Class)(/*[out, retval]*/ BSTR* pVal);
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STDMETHOD(get_GUID)(/*[out, retval]*/ BSTR* pVal);
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STDMETHOD(get_Container)(/*[out, retval]*/ IDataStoreContainer** pVal);
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STDMETHOD(GetValue)(/*[in]*/ BSTR bstrName, /*[out, retval]*/ VARIANT* pVal);
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STDMETHOD(GetValueEx)(/*[in]*/ BSTR bstrName,
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/*[out, retval]*/ VARIANT* pVal);
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STDMETHOD(PutValue)(/*[in]*/ BSTR bstrName, /*[in]*/ VARIANT* pVal);
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STDMETHOD(Update)();
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STDMETHOD(Restore)();
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STDMETHOD(Item)(BSTR bstrName, IDataStoreProperty** pVal);
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//////////
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// IDataStoreObjectEx
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//////////
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STDMETHOD(get_PropertyCount)(long* pVal);
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STDMETHOD(get_NewPropertyEnum)(IUnknown** pVal);
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//////////
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// IDataStoreContainer
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//////////
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STDMETHOD(Item)(/*[in]*/ BSTR bstrName,
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/*[out, retval]*/ IDataStoreObject** ppObject);
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STDMETHOD(Create)(/*[in]*/ BSTR bstrClass,
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/*[in]*/ BSTR bstrName,
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/*[out, retval]*/ IDataStoreObject** ppObject);
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STDMETHOD(MoveHere)(/*[in]*/ IDataStoreObject* pObject,
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/*[in]*/ BSTR bstrNewName);
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STDMETHOD(Remove)(/*[in]*/ BSTR bstrClass, /*[in]*/ BSTR bstrName);
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//////////
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// IDataStoreContainerEx
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//////////
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STDMETHOD(get_ChildCount)(/*[out, retval]*/ long *pVal);
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STDMETHOD(get_NewChildEnum)(/*[out, retval]*/ IUnknown** pVal);
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protected:
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// Initialize a newly allocated DBObject. Used by createInstance.
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void initialize(
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OleDBDataStore* owner,
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IDataStoreContainer* container,
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ULONG uniqueID,
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PCWSTR relativeName
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);
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// Narrows a COM Interface to the implementing DBObject.
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static DBObject* narrow(IUnknown* p);
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CComPtr<OleDBDataStore> store; // DataStore where this object lives.
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CComPtr<IDataStoreContainer> parent; // Parent container.
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ULONG identity; // Unique identity.
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_bstr_t name; // Relative name of this object.
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bool nameDirty; // true if the object has been renamed.
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PropertyBag properties; // Bag of associated properties.
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};
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#endif // _DSOBJECT_H_
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