Interfaccia IDTSBufferManager100

Creates and 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 IDTSBufferManager100
'Utilizzo
Dim instance As IDTSBufferManager100
[GuidAttribute("E25EC665-7DB0-41F9-B0FC-E58318DA64BC")]
public interface IDTSBufferManager100
[GuidAttribute(L"E25EC665-7DB0-41F9-B0FC-E58318DA64BC")]
public interface class IDTSBufferManager100
[<GuidAttribute("E25EC665-7DB0-41F9-B0FC-E58318DA64BC")>]
type IDTSBufferManager100 =  interface end
public interface IDTSBufferManager100

Nel tipo IDTSBufferManager100 sono esposti i membri seguenti.

Proprietà

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

In alto

Metodi

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

In alto

Osservazioni

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 components do not interact directly with the IDTSBuffer100 objects created by the buffer manager, but instead use the managed PipelineBuffer class that marshals data between managed and native code. As such, the methods of the buffer manager that create IDTSBuffer100 objects are not used by managed component developers.

Vedere anche

Riferimento

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