DTSBufferManagerClass Class

Articolo
12/15/2008

Creates and manages IDTSBuffer90 objects.

Spazio dei nomi: Microsoft.SqlServer.Dts.Pipeline.Wrapper
Assembly : Microsoft.SqlServer.DTSPipelineWrap (in microsoft.sqlserver.dtspipelinewrap.dll)

Sintassi

'Dichiarazione
<TypeLibTypeAttribute(2)> _
<ClassInterfaceAttribute(0)> _
<GuidAttribute("24AEBF41-43E9-49C6-9E16-4F8DDCE73FE6")> _
Public Class DTSBufferManagerClass
    Implements DTSBufferManager, IDTSBufferManager90

[TypeLibTypeAttribute(2)] 
[ClassInterfaceAttribute(0)] 
[GuidAttribute("24AEBF41-43E9-49C6-9E16-4F8DDCE73FE6")] 
public class DTSBufferManagerClass : DTSBufferManager, IDTSBufferManager90

[TypeLibTypeAttribute(2)] 
[ClassInterfaceAttribute(0)] 
[GuidAttribute(L"24AEBF41-43E9-49C6-9E16-4F8DDCE73FE6")] 
public ref class DTSBufferManagerClass : DTSBufferManager, IDTSBufferManager90

/** @attribute TypeLibTypeAttribute(2) */ 
/** @attribute ClassInterfaceAttribute(0) */ 
/** @attribute GuidAttribute("24AEBF41-43E9-49C6-9E16-4F8DDCE73FE6") */ 
public class DTSBufferManagerClass implements DTSBufferManager, IDTSBufferManager90

TypeLibTypeAttribute(2) 
ClassInterfaceAttribute(0) 
GuidAttribute("24AEBF41-43E9-49C6-9E16-4F8DDCE73FE6") 
public class DTSBufferManagerClass implements DTSBufferManager, IDTSBufferManager90

Osservazioni

The buffer manager is responsible for allocating, managing, and deleting the IDTSBuffer90 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 IDTSInput90 and IDTSOutput90 objects of the component. Managed component developers do not use the buffer manager to create IDTSBuffer90 objects because managed components do not interact directly with the IDTSBuffer90 objects created by the buffer manager. Managed components use the managed PipelineBuffer class, which marshals data between managed and native code.

Inheritance Hierarchy

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

Thread Safety

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

Piattaforme

Piattaforme di sviluppo

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Piattaforme di destinazione

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Vedere anche

Riferimento

DTSBufferManagerClass Members
Microsoft.SqlServer.Dts.Pipeline.Wrapper Namespace

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