Share via

Objects and Interfaces Implemented by the Sample Provider

  • Article

The sample provider implements three OLE DB objects:

  • The data source object, which enables consumers to connect and initialize the interaction with the data file.

  • The session, which enables consumers to create a rowset for the data set in the data file.

  • The rowset, which exposes a data set to the consumer.

These objects, along with the interfaces implemented in the sample, are described in detail in the following topics, which also contain some of the implementation code for specific interfaces and methods.

The following table lists the interfaces and methods implemented in the sample provider along with the name of the source code file in which each can be found.

Interface name

Method name

Source code file

IDBInitialize

Initialize

Uninitialize

DBInit.cpp

DBInit.cpp

IDBCreateSession

CreateSession

CrtSess.cpp

IDBProperties 

GetProperties

GetPropertyInfo

SetProperties

UtilProp.cpp

UtilProp.cpp

UtilProp.cpp

IPersist

GetClassID

Persist.cpp

IGetDataSource

GetDataSource

DBSess.cpp

IOpenRowset

OpenRowset

OpnRowst.cpp

IColumnsInfo

 

GetColumnInfo

MapColumnIDs

ColInfo.cpp

ColInfo.cpp

IConvertType

CanConvert

CvtType.cpp

IAccessor

 

AddRefAccessor

CreateAccessor

GetBindings

ReleaseAccessor

Accessor.cpp

Accessor.cpp

Accessor.cpp

Accessor.cpp

IRowset 

AddRefRows

GetData

GetNextRows

ReleaseRows

RestartPosition

IRowset.cpp

IRowset.cpp

IRowset.cpp

IRowset.cpp

IRowset.cpp

IRowsetInfo 

GetProperties

GetReferencedRowset

GetSpecification

RowInfo.cpp

RowInfo.cpp

RowInfo.cpp

IRowsetChange 

DeleteRows

InsertRow

SetData

RowChng.cpp

RowChng.cpp

RowChng.cpp

ISessionProperties

GetProperties 

SetProperties

DBSess.cpp

DBSess.cpp

See Also

Tasks

Writing an OLE DB Provider: An Introduction