@startuml
skinparam linetype ortho
skinparam groupInheritance 2

package Spring {
    interface Model
    class Sort
}

package Salespoint {
    interface Catalog << T > Product >>
    interface DataInitializer
    interface Inventory << T > InventoryItem >>
    class Product 
    ' + has price,name and categories : Iterable'
    class Quantity
}

package catering.catalog {
    interface CateringCatalog {
        + DEFAULT_SORT : Sort
        + findByType(type, sort : Sort) : Iterable
        + findByEventType(type) : Iterable
    }
    class CatalogController {
        + CatalogController()
        + eventcateringCatalog(model : Model) : String
        + partyserviceCatalog(model : Model) : String
        + mobilebreakfast(model : Model) : String
        + rentacookCatalog(model : Model) : String
    }
    class Consumable {
      wholesalePrice
      retailPrice
      promotionPrice [0..1]
    }
    class Rentable {
        pricePerHour
    }
}

CateringCatalog         --o "-catalog"  CatalogController 
'- for listing entries to customers'

Inventory "- inventory" <--             CatalogController
'- for checking availabilty'

Model "use"             <..             CatalogController
'- for generating html for a view'


Catalog <..  "<bind> <T->Product" CateringCatalog

Product <|-- Consumable
Product <|-- Rentable

@enduml