February 2010
Beginner
400 pages
11h 13m
English
Content preview from Introducing .NET 4.0: with Visual Studio 2010
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6.3. What Is Windows Workflow Foundation?
WF is composed of three main components:
Workflow instance/runtime
Activities
Workflow designer
6.3.1. Workflow Instance/Runtime
The workflow runtime takes care of instantiating individual workflows and handles persistence and synchronization. The workflow runtime does not exist on its own. It is created inside a host application. The host application can be anything from an ASP.NET web site to a windows service, or even the new "Dublin" or Windows Azure platforms.
In previous versions of WF, the WorkflowRuntime class was restricted to one WorkflowRuntime per app domain, and WorkflowInstance instantiated individual workflows. WorkflowInstance has now been replaced with the class WorkflowInstance, which ...