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c#workflow-foundation-4
Vince Fedorchak
Vince Fedorchak

Reputation: 1205

Windows Workflow Runtime Concept

Hello and thanks for reading.

I'm having difficulty understanding the concept of how the runtime is used to execute workflows in the Windows Workflow Foundation. I would expect a single runtime to be hosted on a machine, and the workflows access this single instance in order to execute themselves. Does WWF operate in this manner? Most of the examples I find create a new WorkflowRuntime instance, execute a workflow, and then dispose of the runtime.

How would you use the WWF to operate a single hosted runtime in order to properly manage schedules, in the same manner as an application server? I feel that I'm misunderstanding the concept of how WWF is "supposed" to be used.

Any help is appreciated, thank you :)

Upvotes: 0

Views: 377

Answers (1)

Maurice
Maurice

Reputation: 27632

WF4 uses a different workflow runtime for each workflow instance. You new up a WorkflowInvoker or WorkflowApplication for each workflow instance. If you use workflow services you create a single WorkflowServiceHost per workflow type and it manages each instance under the hood but they still have their own runtime components.

BTW WorkflowRuntime is a WF3 concept not a WF4 one.

Upvotes: 2

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