Classe DTSBufferManagerClass

Creates and manages IDTSBuffer100 objects.

Hiérarchie d'héritage

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

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

Syntaxe

'Déclaration
<GuidAttribute("87A4C985-0E84-432C-AC1A-B6F49A04ED4F")> _
<ClassInterfaceAttribute()> _
Public Class DTSBufferManagerClass _
    Implements DTSBufferManager, IDTSBufferManager100
'Utilisation
Dim instance As DTSBufferManagerClass

[GuidAttribute("87A4C985-0E84-432C-AC1A-B6F49A04ED4F")]
[ClassInterfaceAttribute()]
public class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[GuidAttribute(L"87A4C985-0E84-432C-AC1A-B6F49A04ED4F")]
[ClassInterfaceAttribute()]
public ref class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[<GuidAttribute("87A4C985-0E84-432C-AC1A-B6F49A04ED4F")>]
[<ClassInterfaceAttribute()>]
type DTSBufferManagerClass =  
    class
        interface DTSBufferManager
        interface IDTSBufferManager100
    end

public class DTSBufferManagerClass implements DTSBufferManager, IDTSBufferManager100

Le type DTSBufferManagerClass expose les membres suivants.

Constructeurs

	Nom	Description
	DTSBufferManagerClass	Initializes a new instance of the DTSBufferManagerClass.

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Propriétés

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

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Méthodes

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

Sécurité des threads

Tous les membres publics static (Shared dans Visual Basic) de ce type sont thread-safe. Tous les membres de l'instance ne sont pas garantis comme étant thread-safe.

Voir aussi

Référence

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