• Artículo

ScriptBuffer Clase

Serves as the base class for the read-only classes representing the input and the outputs that are generated by the Script component in the BufferWrapper project item in a Script component project.

Espacio de nombres:  Microsoft.SqlServer.Dts.Pipeline
Ensamblado:  Microsoft.SqlServer.TxScript (en Microsoft.SqlServer.TxScript.dll)

Sintaxis

'Declaración
Public Class ScriptBuffer
'Uso
Dim instance As ScriptBuffer

public class ScriptBuffer

public ref class ScriptBuffer

type ScriptBuffer =  class end

public class ScriptBuffer

Notas

The ScriptBuffer class serves as the base class for the read-only classes representing the input and the outputs that are generated by the Script component in the BufferWrapper project item in a Script component project. The classes in the BufferWrapper project item provide the developer with a set of methods for working with the data flow buffers, as well as typed accessor properties for each column in the buffers.

The Script component developer does not use the ScriptBuffer class directly, but indirectly, through the derived classes in the BufferWrapper project item that represent the component's input and outputs.

For more information, see Codificar y depurar el componente de script and Descripción del modelo de objetos del componente de script.

Ejemplos

The following code sample from Crear una transformación asincrónica con el componente de script demonstrates several methods and properties of the ScriptBuffer class, including AddRow, NextRow, EndOfRowset, and SetEndOfRowset.

Public Class ScriptMain
    Inherits UserComponent

    Private myRedmondAddressCount As Integer

    Public Overrides Sub CreateNewOutputRows()

        MySummaryOutputBuffer.AddRow()

    End Sub

    Public Overrides Sub MyAddressInput_ProcessInput(ByVal Buffer As MyAddressInputBuffer)

        While Buffer.NextRow()
            MyAddressInput_ProcessInputRow(Buffer)
        End While

        If Buffer.EndOfRowset Then
            MyAddressOutputBuffer.SetEndOfRowset()
            MySummaryOutputBuffer.MyRedmondCount = myRedmondAddressCount
            MySummaryOutputBuffer.SetEndOfRowset()
        End If

    End Sub

    Public Overrides Sub MyAddressInput_ProcessInputRow(ByVal Row As MyAddressInputBuffer)

        With MyAddressOutputBuffer
            .AddRow()
            .AddressID = Row.AddressID
            .City = Row.City
        End With

        If Row.City.ToUpper = "REDMOND" Then
            myRedmondAddressCount += 1
        End If

    End Sub

End Class

Jerarquía de herencia

System. . :: . .Object
  Microsoft.SqlServer.Dts.Pipeline..::..ScriptBuffer

Seguridad para subprocesos

Todos los miembros públicos static (Shared en Visual Basic) de este tipo son seguros para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.