DTSBufferManagerClass Class

Статья
12/15/2008

Creates and manages IDTSBuffer90 objects.

Пространство имен: Microsoft.SqlServer.Dts.Pipeline.Wrapper
Сборка: Microsoft.SqlServer.DTSPipelineWrap (in microsoft.sqlserver.dtspipelinewrap.dll)

Синтаксис

'Декларация
<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

Замечания

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

Синхронизация потоков

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.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

Целевые платформы

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

См. также

Справочник

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

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