IRowsetInfoImpl Class
Provides an implementation for the IRowsetInfo interface.
Syntax
template <class T, class PropClass = T>
class ATL_NO_VTABLE IRowsetInfoImpl :
public IRowsetInfo,
public CUtlProps<PropClass>
Parameters
T
Your class, derived from IRowsetInfoImpl.
PropClass
A user-definable property class that defaults to T.
Requirements
Header: altdb.h
Members
Interface Methods
| Name | Description |
|---|---|
| GetProperties | Returns the current settings of all properties supported by the rowset. |
| GetReferencedRowset | Returns an interface pointer to the rowset to which a bookmark applies. |
| GetSpecification | Returns an interface pointer on the object (command or session) that created this rowset. |
Remarks
A mandatory interface on rowsets. This class implements the rowset properties by using the property set map defined in your command class. Although the rowset class appears to be using the command class' property sets, the rowset is supplied with its own copy of the run-time properties, when it is created by a command or session object.
IRowsetInfoImpl::GetProperties
Returns the current settings for properties in the DBPROPSET_ROWSET group.
Syntax
STDMETHOD (GetProperties )(const ULONG cPropertyIDSets,
const DBPROPIDSET rgPropertyIDSets[],
ULONG* pcPropertySets,
DBPROPSET** prgPropertySets);
Parameters
See IRowsetInfo::GetProperties in the OLE DB Programmer's Reference.
IRowsetInfoImpl::GetReferencedRowset
Returns an interface pointer to the rowset to which a bookmark applies.
Syntax
STDMETHOD (GetReferencedRowset )(DBORDINAL iOrdinal,
REFIID riid,
IUnknown** ppReferencedRowset);
Parameters
See IRowsetInfo::GetReferencedRowset in the OLE DB Programmer's Reference. The iOrdinal parameter must be a bookmark column.
IRowsetInfoImpl::GetSpecification
Returns an interface pointer on the object (command or session) that created this rowset.
Syntax
STDMETHOD (GetSpecification )(REFIID riid,
IUnknown** ppSpecification);
Parameters
See IRowsetInfo::GetSpecification in the OLE DB Programmer's Reference.
Remarks
Use this method with IGetDataSourceImpl to retrieve properties from the data source object.
See also
OLE DB Provider Templates
OLE DB Provider Template Architecture