@startuml

skinparam linetype ortho
skinparam groupInheritance 2

package java.util {
	class ArrayList
	class Collection
	class HashSet
	class Optional
	class Set
}

package catering {
package staff {

	class Staff {
		- id: int
		- surname:  String
		- name: String
		- job: String
		+ Staff(name: String, surname: String, job: String)
		+ getId(): int
		+ getSurname(): String
		+ getName(): String
		+ getJob(): String
		+ setId(): void
		+ setSurname(): void
		+ setName(): void
		+ setJob(): void
	}

	class StaffController {
		+ StaffController(staffRepository: StaffRepository)
		+ getStaff(model Model): String
		+ removeStaff(staffID: int, model Model): String
		+ addStaff(name: String, surname: String, job: String): String
		+ editStaff(id: int, model Model): String
		+ updateStaff(staff: Staff): String
	}

	class StaffDataInitializer {
		+ StaffDataInitializer(staffRepository: StaffRepository)
		+ initialize(): void
	}

	class StaffRepository {
		+ StaffRepository()
		+ addStaff(staff: Staff): boolean
		+ save(staff: Staff): void
		+ count(): long
		+ removeStaff(staffID: int) boolean
		+ getStaff(): Collection<Staff>
		+ findById(id: int): Optional<Staff>
	}

}
}

StaffRepository *-- Staff : -staff
StaffController --> StaffRepository : -staffRepository
StaffDataInitializer --> StaffRepository : -staffRepository
StaffRepository --> Set : -staffs
StaffRepository --> HashSet : use
StaffRepository --> Collection : use
StaffRepository --> Optional : use
StaffRepository --> ArrayList : use


@enduml