1. Requestitembean: Find outofstock Item and add
Message: User, Password, ItemId, add Item quantity
Login - "StoreAccess -" Find if there is an empty items (outofstockItem) - (available) - "Find this item's SupplierID -" Find this Supplier - "Add corresponding quantity and ID Item (for Supplier Methods)
2. DeliverItembean: Find the specified item and add
Message: User, Password, ItemId, add Item quantity
Log in - "StoreAccess -" Find the corresponding item with the login to find the corresponding item with the itemID in Message, see if the Item's SupplierID is equal to the ID of the Supplier found, if equally, add the corresponding Number of Items (used by Item)
