DealStatusBusiness
DealBusiness
BusinessFactory
ProductBusiness
DealCategoryBusiness
ProductCategoryBusiness
DealBusinessImp
+ DealBusinessImp()+ checkOut()+ deleteDealById()+ getAllDeals()+ getDealById()+ getDealsByUserId()
PayWayBusinessImp
+ PayWayBusinessImp()+ getAllPayWays()
DealStatusBusinessImp
+ DealStatusBusinessImp()+ getAllDealsStatus()
ProductBusinessImp
+ ProductBusinessImp()+ addproduct()+ getProductById()+ deleteProductById()+ modifyProductById()+ getAllProducts()+ getAllProductsByCategoryId()
DealCategoryBusinessImp
+ DealCategoryBusinessImp()+ getAllCategory()+ getCategoryInfoById()
ProductCategoryBusinessImp
+ ProductCategoryBusinessImp()+ getAllCategory()+ getCategoryInfoById()
PayWayBusiness
