@startuml
  skinparam linetype ortho
node "OwnerService" as owner{
    class "ApplicationManager" as apm
    class "APMController" as controller{
        {method} sendAction(...)
    }
    abstract "sys::Service" as serv
    serv <|-u-- apm
    controller "use"-d--> apm
}

class "ActionsParams" as params

node "Provider" as provider {
    class "NotificationProvider" as notProvider {
        {field} ownerService *
        {method} handle(...)
        {method} send()
        {method} requestNotSeenNotifications()
    }
    class "NotificationsChangedParams" as notifParams
    notProvider -l..>notifParams
}

provider -[hidden]d- owner

notProvider "use"--> serv
notProvider "use"--> controller
params "use"<-- controller
notifParams --|>params
apm "creates"..>notProvider


@enduml