ScriptBuffer-Klasse
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.
Namespace: Microsoft.SqlServer.Dts.Pipeline
Assembly: Microsoft.SqlServer.TxScript (in Microsoft.SqlServer.TxScript.dll)
Syntax
'Declaration
Public Class ScriptBuffer
'Usage
Dim instance As ScriptBuffer
public class ScriptBuffer
public ref class ScriptBuffer
type ScriptBuffer = class end
public class ScriptBuffer
Hinweise
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 Codieren und Debuggen der Skriptkomponente and Grundlegendes zum Skript-Komponentenobjektmodell.
Beispiele
The following code sample from Erstellen einer asynchronen Transformation mit der Skriptkomponente 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
Vererbungshierarchie
System. . :: . .Object
Microsoft.SqlServer.Dts.Pipeline..::..ScriptBuffer
Threadsicherheit
Alle öffentlichen static (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.