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DTSBufferManagerClass-Klasse

Creates and manages IDTSBuffer100 objects.

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System. . :: . .Object
  Microsoft.SqlServer.Dts.Pipeline.Wrapper..::..DTSBufferManagerClass

Namespace:  Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly:  Microsoft.SqlServer.DTSPipelineWrap (in Microsoft.SqlServer.DTSPipelineWrap.dll)

Syntax

'Declaration
<GuidAttribute("87A4C985-0E84-432C-AC1A-B6F49A04ED4F")> _
<ClassInterfaceAttribute()> _
Public Class DTSBufferManagerClass _
    Implements DTSBufferManager, IDTSBufferManager100
'Usage
Dim instance As DTSBufferManagerClass

[GuidAttribute("87A4C985-0E84-432C-AC1A-B6F49A04ED4F")]
[ClassInterfaceAttribute()]
public class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[GuidAttribute(L"87A4C985-0E84-432C-AC1A-B6F49A04ED4F")]
[ClassInterfaceAttribute()]
public ref class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[<GuidAttribute("87A4C985-0E84-432C-AC1A-B6F49A04ED4F")>]
[<ClassInterfaceAttribute()>]
type DTSBufferManagerClass =  
    class
        interface DTSBufferManager
        interface IDTSBufferManager100
    end

public class DTSBufferManagerClass implements DTSBufferManager, IDTSBufferManager100

Der DTSBufferManagerClass-Typ macht folgende Elemente verfügbar.

Konstruktoren

  Name Beschreibung
Öffentliche Methode DTSBufferManagerClass Initializes a new instance of the DTSBufferManagerClass.

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Eigenschaften

  Name Beschreibung
Öffentliche Eigenschaft IsVirtual Gets a value that indicates whether the specified buffer is a virtual buffer.

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Methoden

  Name Beschreibung
Öffentliche Methode CreateBuffer Creates an IDTSBuffer100 object that is based on the specified buffer type.
Öffentliche Methode CreateFlatBuffer Creates an IDTSBuffer100 of the specified size.
Öffentliche Methode CreateVirtualBuffer Infrastruktur
Öffentliche Methode Equals (Geerbt von Object.)
Geschützte Methode Finalize (Geerbt von Object.)
Öffentliche Methode FindColumnByLineageID Gets the location of a column in the specified IDTSBuffer100 object.
Öffentliche Methode GetBLOBObject Creates an IDTSBLOBObject100 that is used to manipulate binary large objects (BLOBs).
Öffentliche Methode GetColumnCount Gets the number of columns in the specified registered buffer type.
Öffentliche Methode GetColumnInfo Gets the DTP_BUFFCOL structure for a column in the specified buffer definition.
Öffentliche Methode GetHashCode (Geerbt von Object.)
Öffentliche Methode GetRowWidth Gets the size of the row defined for the buffer type definition.
Öffentliche Methode GetType (Geerbt von Object.)
Geschützte Methode MemberwiseClone (Geerbt von Object.)
Öffentliche Methode RegisterBufferType Registers a buffer type with the IDTSBufferManager100.
Öffentliche Methode RegisterLineageIDs Infrastruktur
Öffentliche Methode ToString (Geerbt von Object.)

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Hinweise

The buffer manager is responsible for allocating, managing, and deleting the IDTSBuffer100 objects used by the data flow task and the components contained by the task, from a source through to the destination. It provides utility functions for registering buffer types, locating columns in a buffer, retrieving metadata about a column in a buffer and creating private buffers that are used internally by the component that requests the private buffer.

Managed data flow component developers use the buffer manager primarily to locate columns in a PipelineBuffer that were defined in the IDTSInput100 and IDTSOutput100 objects of the component. Managed component developers do not use the buffer manager to create IDTSBuffer100 objects because managed components do not interact directly with the IDTSBuffer100 objects created by the buffer manager. Managed components use the managed PipelineBuffer class, which marshals data between managed and native code.

Threadsicherheit

Alle öffentlichen static (Shared in Visual Basic)-Elemente dieses Typs sind Threadsicher. Für Instanzelemente wird die Threadsicherheit nicht gewährleistet.