ScriptBuffer 클래스

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.

상속 계층

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

네임스페이스:  Microsoft.SqlServer.Dts.Pipeline
어셈블리:  Microsoft.SqlServer.TxScript(Microsoft.SqlServer.TxScript.dll)

구문

‘선언
Public Class ScriptBuffer
‘사용 방법
Dim instance As ScriptBuffer

public class ScriptBuffer

public ref class ScriptBuffer

type ScriptBuffer =  class end

public class ScriptBuffer

ScriptBuffer 유형에서 다음 멤버를 표시합니다.

생성자

	이름	설명
	ScriptBuffer	Initializes a new instance of the ScriptBuffer class.

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속성

	이름	설명
	Item	Gets or sets the value of a column in the buffer by using its index in the array of buffer column indexes.

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메서드

	이름	설명
	AddRow	Adds an empty new row to the data flow buffer.
	DirectRow	Directs a row to the specified output when a component has more than one available output.
	EndOfRowset	Returns a value that indicates whether the end of the rows in a buffer has been reached.
	Equals	(Object에서 상속됨)
	Finalize	(Object에서 상속됨)
	GetHashCode	(Object에서 상속됨)
	GetType	(Object에서 상속됨)
	IsNull	Returns a value that indicates whether the value of the specified column is nullNothingnullptrunitnull 참조(Visual Basic에서는 Nothing).
	MemberwiseClone	(Object에서 상속됨)
	NextRow	Tries to move to the next available row in the buffer and returns a value that indicates whether another row was available.
	SetEndOfRowset	Indicates to the data flow that no more rows will be added to the output buffer.
	SetNull	Makes the value of the specified column nullNothingnullptrunitnull 참조(Visual Basic에서는 Nothing).
	ToString	(Object에서 상속됨)

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필드

	이름	설명
	Buffer
	BufferColumnIndexes	An array of column indexes.

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주의

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 스크립트 구성 요소 코딩 및 디버깅 and 스크립트 구성 요소 개체 모델 이해.

예

The following code sample from 스크립트 구성 요소를 사용하여 비동기 변환 만들기 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

스레드 보안

이 유형의 모든 공용 static(Visual Basic에서는 Shared) 멤버는 스레드로부터 안전합니다. 인스턴스 멤버는 스레드로부터의 안전성이 보장되지 않습니다.

참고 항목

참조

Microsoft.SqlServer.Dts.Pipeline 네임스페이스