@startuml
skinparam classAttributeIconSize 0
'
----------------------
' External / Android types
'
----------------------
class Application <<Android>>
class AppCompatActivity <<Android>>
class
Bundle <<Android>>
class Provider<T> <<javax.inject>>
class AbstractSavedStateViewModelFactory <<AndroidX>>
class DaggerAppComponent <<generated>>
'
----------------------
' ui
'
----------------------
package "ui" {
abstract class ViewModel <<androidx.lifecycle.ViewModel>> {}
class OrdinaryViewModel {
-repo
: UserRepository
+sayHello
(): String
+setData
(value: String)
+getData
(): String?
}
class MainActivity
' inheritance
OrdinaryViewModel
--|> ViewModel
}
'
----------------------
' repository
'
----------------------
package "repository" {
class UserRepository {
+greet
(): String
}
}
'
----------------------
' vmfactory
'
----------------------
package "vmfactory" {
class ViewModelFactory <<@Singleton>> {
-creators
: Map<Class<? extends ViewModel>, Provider<ViewModel>>
-defaultArgs
: Bundle?
+create
(key
: String, modelClass
: Class<T>
): T
}
ViewModelFactory
--|> AbstractSavedStateViewModelFactory
ViewModelFactory ..> Provider
: uses
}
'
----------------------
' di
'
----------------------
package "di" {
interface ViewModelKey <<@MapKey>>
class ViewModelModule <<@Module>> {
{abstract} +bindOrdinaryViewModel
(vm
: OrdinaryViewModel
): ViewModel
}
interface AppComponent <<@Singleton, @Component>> {
+inject
(activity
: MainActivity
)
}
interface AppComponent_Factory <<@Component.Factory>> {
+create
(application
: Application
): AppComponent
}
AppComponent ..> ViewModelModule
: modules
AppComponent_Factory
--> AppComponent
: create
()
DaggerAppComponent
--> AppComponent_Factory
: factory
()
}
'
----------------------
' Application wiring
'
----------------------
class MyApplication {
-appComponent
: AppComponent
+onCreate
()
}
MyApplication
--|> Application
MyApplication o
-- AppComponent
: holds
MyApplication ..> DaggerAppComponent
: "DaggerAppComponent.factory
().create
(this
)"
'
----------------------
' DI / runtime links
'
----------------------
AppComponent
--> MainActivity
: inject
()
ViewModelModule
--> OrdinaryViewModel
: binds into creators map
OrdinaryViewModel ..> UserRepository
: @Inject
MainActivity ..> ViewModelFactory
: @Inject
(typical
)
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