Método ScriptComponent.PostExecute

Artigo
04/26/2013

Executes custom code that must run after the Script component has processed its inputs and outputs.

Namespace: Microsoft.SqlServer.Dts.Pipeline
Assembly: Microsoft.SqlServer.TxScript (em Microsoft.SqlServer.TxScript.dll)

Sintaxe

'Declaração
Public Overridable Sub PostExecute
'Uso
Dim instance As ScriptComponent

instance.PostExecute()

public virtual void PostExecute()

public:
virtual void PostExecute()

abstract PostExecute : unit -> unit  
override PostExecute : unit -> unit

public function PostExecute()

Comentários

The Script component developer does not use the ScriptComponent class directly, but indirectly, by coding the methods and properties of the ScriptMain class, which inherits from ScriptComponent through the UserComponent class.

The developer can override the PostExecute method to perform cleanup or any one-time tasks necessary after processing the rows of data.

Exemplos

The following code sample demonstrates how the Script component developer might use the PreExecute and PostExecute methods to open and close a text file connection before and after processing. For more information on this sample, see Criando um destino com o componente Script.

Imports System.IO
...
Public Class ScriptMain
    Inherits UserComponent

    Dim copiedAddressFile As String
    Private textWriter As StreamWriter
    Private columnDelimiter As String = ","

    Public Overrides Sub AcquireConnections(ByVal Transaction As Object)

        Dim connMgr As IDTSConnectionManager100 = _
            Me.Connections.MyFlatFileDestConnectionManager
        copiedAddressFile = CType(connMgr.AcquireConnection(Nothing), String)

    End Sub

    Public Overrides Sub PreExecute()

        textWriter = New StreamWriter(copiedAddressFile, False)

    End Sub

    Public Overrides Sub MyAddressInput_ProcessInputRow(ByVal Row As MyAddressInputBuffer)

        With textWriter
            If Not Row.AddressID_IsNull Then
                .Write(Row.AddressID)
            End If
            .Write(columnDelimiter)
            If Not Row.City_IsNull Then
                .Write(Row.City)
            End If
            .WriteLine()
        End With

    End Sub

    Public Overrides Sub PostExecute()

        textWriter.Close()

    End Sub

End Class

Consulte também

Referência

ScriptComponent Classe

Namespace Microsoft.SqlServer.Dts.Pipeline

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