[lev]

смотрите карту InventItemOrderSetupMap, в частности метод find():

switch(_setupType)
    {
        case InventItemOrderSetupType::Purch    :

            itemSetupMap = InventItemPurchSetup::find(_itemId, _inventDimId, _forUpdate, _inventTable);
            break;

        case InventItemOrderSetupType::Invent   :

            itemSetupMap = InventItemInventSetup::find(_itemId, _inventDimId, _forUpdate, _inventTable);
            break;

        case InventItemOrderSetupType::Sales    :

            itemSetupMap = InventItemSalesSetup::find(_itemId, _inventDimId, _forUpdate, _inventTable);
            break;

        default                                 :
            throw error(strfmt("@SYS89080", _setupType));
    }