Interface DTSBufferManager

Syntaxe

'Déclaration
<GuidAttribute("E22328E1-02FA-4365-9EDE-120324F715BF")> _
Public Interface DTSBufferManager _
    Inherits IDTSBufferManager100
'Utilisation
Dim instance As DTSBufferManager

[GuidAttribute("E22328E1-02FA-4365-9EDE-120324F715BF")]
public interface DTSBufferManager : IDTSBufferManager100

[GuidAttribute(L"E22328E1-02FA-4365-9EDE-120324F715BF")]
public interface class DTSBufferManager : IDTSBufferManager100

[<GuidAttribute("E22328E1-02FA-4365-9EDE-120324F715BF")>]
type DTSBufferManager =  
    interface
        interface IDTSBufferManager100
    end

public interface DTSBufferManager extends IDTSBufferManager100

Propriétés

	Nom	Description
	IsVirtual	Gets a value that indicates whether the specified buffer is a virtual buffer. (hérité de IDTSBufferManager100.)

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Méthodes

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

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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 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.

Voir aussi

Référence