Saga state machine definition (Chris Patterson)

gistfile1.cs

	public class DrinkPreprationStateMachine :
		StateMachine < DrinkPreprationStateMachine >,
		ISaga,
		InitiatedBy < NewOrderMessage >,
		Orchestrates < PaymentCompleteMessage >,
		Orchestrates < DrinkPreparedMessage >
	{
		static DrinkPreprationStateMachine()
		{
			Define(() =>
				{
					Initially(
						When(NewOrder)
							.Then(saga =>
								{
									// start preparing the drink
								})
							.TransitionTo(PreparingDrink));
					During(PreparingDrink,
						When(DrinkPrepared)
					       	.TransitionTo(WaitingForPayment),
						When(PaymentComplete)
					       	.TransitionTo(WaitingForDrink));
					During(WaitingForPayment,
					    When(PaymentComplete)
					       	.Then(saga =>
					       		{
					       			// publish drink ready message
					       		})
					       	.Complete());
					During(WaitingForDrink,
						When(DrinkPrepared)
					       	.Then(saga =>
					       		{
					       			// publish drink ready message
					       		})
					       	.Complete());
				});
		}
		// event and state definitions not shown, but are simple properties
	}