public interface DoInventory
DoPaymentCmd
Implementation class implements the DoInventory
interface
to indicate to the OrderProcess Controller command that it should let the DoPaymentCmd
Implementation class handle the Updating of Inevntory (by calling the UpdateInventory Task Command)
directly.
For DoPaymentCmd implementations that do not implement the DoInventory
interface,
the OrderProcess Controller command calls the UpdateInventory Task Command before calling
the DoPayment Task Command.
The DoInventory
interface declares no methods.