CAccessorBase Class
All accessors in the OLE DB Templates derive from this class. CAccessorBase allows one rowset to manage multiple accessors. It also provides binding for both parameters and output columns.
Syntax
// Replace with syntax
Members
Methods
| Name | Description |
|---|---|
| Close | Closes the accessors. |
| GetHAccessor | Retrieves the accessor handle. |
| GetNumAccessors | Retrieves the number of accessors created by the class. |
| IsAutoAccessor | Tests whether the specified accessor is an autoaccessor. |
| ReleaseAccessors | Releases the accessors. |
Requirements
Header: atldbcli.h
CAccessorBase::Close
Closes the accessors.
Syntax
void Close();
Remarks
You must call ReleaseAccessors first.
CAccessorBase::GetHAccessor
Retrieves the accessor handle of a specified accessor.
Syntax
HACCESSOR GetHAccessor(ULONG nAccessor) const;
Parameters
nAccessor
[in] The zero-offset number for the accessor.
Return Value
The accessor handle.
CAccessorBase::GetNumAccessors
Retrieves the number of accessors created by the class.
Syntax
ULONG GetNumAccessors() const;
Return Value
The number of accessors created by the class.
CAccessorBase::IsAutoAccessor
Returns true if data is automatically retrieved for the accessor during a Move operation.
Syntax
bool IsAutoAccessor(ULONG nAccessor) const;
Parameters
nAccessor
[in] The zero-offset number for the accessor.
Return Value
Returns true if the accessor is an autoaccessor. Otherwise, it returns false.
CAccessorBase::ReleaseAccessors
Releases the accessors created by the class.
Syntax
HRESULT ReleaseAccessors(IUnknown* pUnk);
Parameters
pUnk
[in] A pointer to an IUnknown interface for the COM object for which the accessors have been created.
Return Value
A standard HRESULT.
Remarks
Called from CAccessorRowset::Close.
See also
OLE DB Consumer Templates
OLE DB Consumer Templates Reference
CAccessorBase Class