/// <summary author="James Heim" created="2019/01/31">
        /// Pass the old supplier and new old supplier to the SupplierAccessor in order
        /// to update the supplier in the database.
        /// </summary>
        /// <param name="newSupplier"></param>
        /// <param name="oldSupplier"></param>
        public void UpdateSupplier(Supplier newSupplier, Supplier oldSupplier)
        {
            newSupplier.Validate();
            oldSupplier.Validate();

            try
            {
                _supplierAccessor.UpdateSupplier(newSupplier, oldSupplier);
            }
            catch (Exception ex)
            {
                ExceptionLogManager.getInstance().LogException(ex);
                throw ex;
            }
        }