Wiley Expert WSS 3.0 and MOSS 2007 Programming 978-0-470-38137-3 ユーザーズマニュアル

      The SharePoint 2007 

Architecture       

   

 SharePoint 2007 is an extension of ASP.NET and IIS. This chapter walks through the main 
architectural components of IIS and ASP.NET and shows you how these components are extended 
to add support for SharePoint functionalities. 

 Because IIS is one of the many options for hosting ASP.NET, the discussion begins with the 
coverage of the ASP.NET hosting environment where HTTP worker requests and runtime classes 
are discussed. Next, the chapter covers IIS concepts such as web sites and application pools 
followed by discussions of the related SharePoint object model classes. The ASP.NET HTTP 
Runtime Pipeline and the SharePoint extensions to this pipeline are discussed in depth. You ’ ll also 
learn about the ASP.NET dynamic compilation model and the role it plays in SharePoint.  

  ASP.NET Hosting Environment 

 One of the great architectural characteristics of the ASP.NET Framework is its isolation from its 
hosting environment, which allows you to run your ASP.NET applications in different hosting 
scenarios such as IIS 5.0, IIS 5.1, IIS 6.0, IIS 7.0, or even a custom managed application. This section 
discusses these architectural aspects of the ASP.NET Framework as well as the most common 
hosting scenario, IIS. 

 As mentioned, ASP.NET can be hosted in different environments, such as IIS 5.0, IIS 6.0, IIS 7.0, or 
even a custom managed application such as a console application. Hosting ASP.NET in a given 
environment involves two major components: 

   Worker request class.  This is a class that directly or indirectly inherits from the 
HttpWorkerRequest abstract base class. As you ’ ll see later, an ASP.NET component named 
HttpRuntime uses the worker request class to communicate with the underlying 
environment. All worker request classes implement the HttpWorkerRequest API, 

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9/20/08   6:49:26 AM