Compartir a través de

Clase DTSBufferManagerClass

  • Artículo

Creates and manages IDTSBuffer100 objects.

Jerarquía de herencia

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

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

Sintaxis

'Declaración
<GuidAttribute("26D38582-1304-4A82-AD14-8DC8C09E6233")> _
<ClassInterfaceAttribute(ClassInterfaceType.None)> _
Public Class DTSBufferManagerClass _
    Implements DTSBufferManager, IDTSBufferManager100
'Uso
Dim instance As DTSBufferManagerClass

[GuidAttribute("26D38582-1304-4A82-AD14-8DC8C09E6233")]
[ClassInterfaceAttribute(ClassInterfaceType.None)]
public class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[GuidAttribute(L"26D38582-1304-4A82-AD14-8DC8C09E6233")]
[ClassInterfaceAttribute(ClassInterfaceType::None)]
public ref class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[<GuidAttribute("26D38582-1304-4A82-AD14-8DC8C09E6233")>]
[<ClassInterfaceAttribute(ClassInterfaceType.None)>]
type DTSBufferManagerClass =  
    class 
        interface DTSBufferManager 
        interface IDTSBufferManager100 
    end

public class DTSBufferManagerClass implements DTSBufferManager, IDTSBufferManager100

El tipo DTSBufferManagerClass expone los siguientes miembros.

Constructores

  Nombre Descripción
Método público DTSBufferManagerClass Initializes a new instance of the DTSBufferManagerClass.

Arriba

Propiedades

  Nombre Descripción
Propiedad pública IsVirtual Gets a value that indicates whether the specified buffer is a virtual buffer.

Arriba

Métodos

  Nombre Descripción
Método público CreateBuffer Creates an IDTSBuffer100 object that is based on the specified buffer type.
Método público CreateFlatBuffer Creates an IDTSBuffer100 of the specified size.
Método público CreateFlatBuffer64 Creates an IDTSBuffer100 of the specified size.
Método público CreateVirtualBuffer Infraestructura. Creates a virtual IDTSBuffer100 object.
Método público Equals (Se hereda de Object.)
Método protegido Finalize (Se hereda de Object.)
Método público FindColumnByLineageID Gets the location of a column in the specified IDTSBuffer100 object.
Método público GetBLOBObject Creates an IDTSBLOBObject100 that is used to manipulate binary large objects (BLOBs).
Método público GetColumnCount Gets the number of columns in the specified registered buffer type.
Método público GetColumnInfo Gets the DTP_BUFFCOL structure for a column in the specified buffer definition.
Método público GetHashCode (Se hereda de Object.)
Método público GetRowWidth Gets the size of the row defined for the buffer type definition.
Método público GetType (Se hereda de Object.)
Método protegido MemberwiseClone (Se hereda de Object.)
Método público RegisterBufferType Registers a buffer type with the IDTSBufferManager100.
Método público RegisterLineageIDs Infraestructura. Registers the specified IDTSBuffer100 object.
Método público ToString (Se hereda de Object.)

Arriba

Comentarios

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.

Seguridad para subprocesos

Cualquier miembro público static (Shared en Visual Basic) de este tipo es seguro para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.

Vea también

Referencia

Espacio de nombres Microsoft.SqlServer.Dts.Pipeline.Wrapper