Interfaccia DTSBufferManager

  • Articolo

Manages IDTSBuffer100 objects.

Spazio dei nomi  Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly:  Microsoft.SqlServer.DTSPipelineWrap (in Microsoft.SqlServer.DTSPipelineWrap.dll)

Sintassi

'Dichiarazione
<GuidAttribute("E25EC665-7DB0-41F9-B0FC-E58318DA64BC")> _
Public Interface DTSBufferManager _
    Inherits IDTSBufferManager100
'Utilizzo
Dim instance As DTSBufferManager

[GuidAttribute("E25EC665-7DB0-41F9-B0FC-E58318DA64BC")]
public interface DTSBufferManager : IDTSBufferManager100

[GuidAttribute(L"E25EC665-7DB0-41F9-B0FC-E58318DA64BC")]
public interface class DTSBufferManager : IDTSBufferManager100

[<GuidAttribute("E25EC665-7DB0-41F9-B0FC-E58318DA64BC")>]
type DTSBufferManager =  
    interface 
        interface IDTSBufferManager100 
    end

public interface DTSBufferManager extends IDTSBufferManager100

Nel tipo DTSBufferManager sono esposti i membri seguenti.

Proprietà

  Nome Descrizione
Proprietà pubblica IsVirtual Gets a value that indicates whether the specified buffer is a virtual buffer. Ereditato da IDTSBufferManager100.

In alto

Metodi

  Nome Descrizione
Metodo pubblico CreateBuffer Creates an IDTSBuffer100 based on the specified buffer type. Ereditato da IDTSBufferManager100.
Metodo pubblico CreateFlatBuffer Creates an IDTSBuffer100 of the specified size. Ereditato da IDTSBufferManager100.
Metodo pubblico CreateFlatBuffer64 Creates an IDTSBuffer100 of the specified size. Ereditato da IDTSBufferManager100.
Metodo pubblico CreateVirtualBuffer Infrastruttura. Creates a virtual IDTSBuffer100 object. Ereditato da IDTSBufferManager100.
Metodo pubblico FindColumnByLineageID Gets the location, by index, of a column in a specified IDTSBuffer100 object. Ereditato da IDTSBufferManager100.
Metodo pubblico GetBLOBObject Creates an IDTSBLOBObject100 that is used to manipulate binary large objects (BLOBs). Ereditato da IDTSBufferManager100.
Metodo pubblico GetColumnCount Gets the number of columns in a specified registered buffer type. Ereditato da IDTSBufferManager100.
Metodo pubblico GetColumnInfo Gets the DTP_BUFFCOL structure for a column in a specified buffer definition. Ereditato da IDTSBufferManager100.
Metodo pubblico GetRowWidth Gets the size, in bytes, of the row defined for the buffer type definition. Ereditato da IDTSBufferManager100.
Metodo pubblico RegisterBufferType Registers a buffer type with an IDTSBufferManager100. Ereditato da IDTSBufferManager100.
Metodo pubblico RegisterLineageIDs Infrastruttura. Registers the specified IDTSBuffer100 object. Ereditato da IDTSBufferManager100.

In alto

Osservazioni

The buffer manager is responsible for allocating, managing, and deleting the IDTSBuffer100 objects used by the data flow task and the data flow components, 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 that marshals data between managed and native code.

Vedere anche

Riferimento

Spazio dei nomi Microsoft.SqlServer.Dts.Pipeline.Wrapper