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Interface IDTSBufferManager100

Creates and manages IDTSBuffer100 objects.

Espace de noms :  Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly :  Microsoft.SqlServer.DTSPipelineWrap (en Microsoft.SqlServer.DTSPipelineWrap.dll)

Syntaxe

'Déclaration
<GuidAttribute("E25EC665-7DB0-41F9-B0FC-E58318DA64BC")> _
Public Interface IDTSBufferManager100
'Utilisation
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

Le type IDTSBufferManager100 expose les membres suivants.

Propriétés

  Nom Description
Propriété publique IsVirtual Gets a value that indicates whether the specified buffer is a virtual buffer.

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Méthodes

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

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Notes

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.

Voir aussi

Référence

Espace de noms Microsoft.SqlServer.Dts.Pipeline.Wrapper