PipelineComponent.ProcessInput Method
Called at run time when a PipelineBuffer from an upstream component is available to the component to let the component process the incoming rows.
Espacio de nombres: Microsoft.SqlServer.Dts.Pipeline
Ensamblado: Microsoft.SqlServer.PipelineHost (in microsoft.sqlserver.pipelinehost.dll)
Sintaxis
'Declaración
Public Overridable Sub ProcessInput ( _
inputID As Integer, _
buffer As PipelineBuffer _
)
public virtual void ProcessInput (
int inputID,
PipelineBuffer buffer
)
public:
virtual void ProcessInput (
int inputID,
PipelineBuffer^ buffer
)
public void ProcessInput (
int inputID,
PipelineBuffer buffer
)
public function ProcessInput (
inputID : int,
buffer : PipelineBuffer
)
Parámetros
- inputID
The ID of the input of the component.
- buffer
The PipelineBuffer object.
Notas
The ProcessInput method is called to provide the component a full PipelineBuffer object that contains rows from the upstream component. The columns contained in buffer include those columns defined in the IDTSInputColumnCollection90 of the component. If the component has synchronous outputs, the buffer will also include the columns added to the output column collection by the component, and all the columns in the output column collection of the components upstream from the component. Columns are located in a buffer row using the FindColumnByLineageID method of the BufferManager.
ProcessInput will be called repeatedly as the data flow task receives full buffers from the upstream components. The final call to ProcessInput is confirmed when the EndOfRowset property is true.
Ejemplo
public override void ProcessInput( int inputID, PipelineBuffer buffer )
{
if( !buffer.EndOfRowset)
{
while( buffer.NextRow() )
{
// TODO: Read or write data to the columns in the buffer.
}
}
}
Public Overrides Sub ProcessInput(ByVal inputID As Integer, ByVal buffer As PipelineBuffer)
If Not buffer.EndOfRowset Then
While buffer.NextRow
' TODO: Read or write data to the columns in the buffer.
End While
End If
End Sub
Seguridad para subprocesos
Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Plataformas
Plataformas de desarrollo
Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.
Plataformas de destino
Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.
Vea también
Referencia
PipelineComponent Class
PipelineComponent Members
Microsoft.SqlServer.Dts.Pipeline Namespace