Classe DTSBufferManagerClass
Creates and manages IDTSBuffer100 objects.
Hierarquia de herança
System.Object
Microsoft.SqlServer.Dts.Pipeline.Wrapper.DTSBufferManagerClass
Namespace: Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly: Microsoft.SqlServer.DTSPipelineWrap (em Microsoft.SqlServer.DTSPipelineWrap.dll)
Sintaxe
'Declaração
<GuidAttribute("26D38582-1304-4A82-AD14-8DC8C09E6233")> _
<ClassInterfaceAttribute(ClassInterfaceType.None)> _
Public Class DTSBufferManagerClass _
Implements DTSBufferManager, IDTSBufferManager100
'Uso
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
O tipo DTSBufferManagerClass expõe os membros a seguir.
Construtores
Nome | Descrição | |
---|---|---|
DTSBufferManagerClass | Initializes a new instance of the DTSBufferManagerClass. |
Início
Propriedades
Nome | Descrição | |
---|---|---|
IsVirtual | Gets a value that indicates whether the specified buffer is a virtual buffer. |
Início
Métodos
Nome | Descrição | |
---|---|---|
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 | Infraestrutura. Creates a virtual IDTSBuffer100 object. | |
Equals | (Herdado de Object.) | |
Finalize | (Herdado 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 | (Herdado de Object.) | |
GetRowWidth | Gets the size of the row defined for the buffer type definition. | |
GetType | (Herdado de Object.) | |
MemberwiseClone | (Herdado de Object.) | |
RegisterBufferType | Registers a buffer type with the IDTSBufferManager100. | |
RegisterLineageIDs | Infraestrutura. Registers the specified IDTSBuffer100 object. | |
ToString | (Herdado de Object.) |
Início
Comentários
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.
Segurança de thread
Qualquer membro público static (Shared no Visual Basic) desse tipo é seguro para threads. Não há garantia de que qualquer membro de instância seja seguro para threads.