DTSBufferManagerClass Class

Article
04/26/2013

Creates and manages IDTSBuffer100 objects.

Inheritance Hierarchy

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

Namespace: Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly: Microsoft.SqlServer.DTSPipelineWrap (in Microsoft.SqlServer.DTSPipelineWrap.dll)

Syntax

'Declaration
<GuidAttribute("26D38582-1304-4A82-AD14-8DC8C09E6233")> _
<ClassInterfaceAttribute(ClassInterfaceType.None)> _
Public Class DTSBufferManagerClass _
    Implements DTSBufferManager, IDTSBufferManager100
'Usage
Dim instance As DTSBufferManagerClass

[GuidAttribute("26D38582-1304-4A82-AD14-8DC8C09E6233")]
[ClassInterfaceAttribute(ClassInterfaceType.None)]
public class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[GuidAttribute(L"26D38582-1304-4A82-AD14-8DC8C09E6233")]
[ClassInterfaceAttribute(ClassInterfaceType::None)]
public ref class DTSBufferManagerClass : DTSBufferManager, 
    IDTSBufferManager100

[<GuidAttribute("26D38582-1304-4A82-AD14-8DC8C09E6233")>]
[<ClassInterfaceAttribute(ClassInterfaceType.None)>]
type DTSBufferManagerClass =  
    class 
        interface DTSBufferManager 
        interface IDTSBufferManager100 
    end

public class DTSBufferManagerClass implements DTSBufferManager, IDTSBufferManager100

The DTSBufferManagerClass type exposes the following members.

Constructors

	Name	Description
	DTSBufferManagerClass	Initializes a new instance of the DTSBufferManagerClass.

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Properties

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

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Methods

	Name	Description
	CreateBuffer	Creates an IDTSBuffer100 object that is based on the specified buffer type.
	CreateFlatBuffer	Creates an IDTSBuffer100 of the specified size.
	CreateFlatBuffer64	Creates an IDTSBuffer100 of the specified size.
	CreateVirtualBuffer	Infrastructure. Creates a virtual IDTSBuffer100 object.
	Equals	(Inherited from Object.)
	Finalize	(Inherited from 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	(Inherited from Object.)
	GetRowWidth	Gets the size of the row defined for the buffer type definition.
	GetType	(Inherited from Object.)
	MemberwiseClone	(Inherited from Object.)
	RegisterBufferType	Registers a buffer type with the IDTSBufferManager100.
	RegisterLineageIDs	Infrastructure. Registers the specified IDTSBuffer100 object.
	ToString	(Inherited from Object.)

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Remarks

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.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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