Use "getter" or "late final" or "object injection" ?

main.dart

import 'package:riverpod/riverpod.dart';

final stateProvider = StateProvider((_) => 1);

final getterClassProvider = Provider((ref) => GetterClass(ref.read));
class GetterClass {
  GetterClass(this._read) {
    print('Construct GetterClass');
  }
  final Reader _read;
  int get stateValue => _read(stateProvider);
}

final lateFinalClassProvider = Provider((ref) => LateFinalClass(ref.read));
class LateFinalClass {
  LateFinalClass(this._read) {
    print('Construct LateFinalClass');
  }
  final Reader _read;
  late final stateValue = _read(stateProvider);
}

final injectionClassProvider = Provider((ref) => InjectionClass(ref.watch(stateProvider)));

class InjectionClass {
  InjectionClass(this.stateValue) {
    print('Construct InjectionClass');
  }
  final int stateValue;
}

void main() {
  final container = ProviderContainer();

  print('# Read providers');
  
  final getterClass = container.read(getterClassProvider);
  final lateFinalClass = container.read(lateFinalClassProvider);
  final injectionClass = container.read(injectionClassProvider);
  
  print('-----');
  print('# Retrieve value');
  
  print('GetterClass.stateValue: ${getterClass.stateValue}');
  print('LateFinalClass.stateValue: ${lateFinalClass.stateValue}');
  print('InjectionClass.stateValue: ${injectionClass.stateValue}');

  print('-----');
  print('# Update stateProvider.state from 1 to 2');
 container.read(stateProvider.notifier).state = 2;

  print('-----');
  print('# Re-retrieve value');
  
  print('GetterClass.stateValue: ${getterClass.stateValue} <- changed');
  print('LateFinalClass.stateValue: ${lateFinalClass.stateValue}');
  print('InjectionClass.stateValue: ${injectionClass.stateValue}');

  print('-----');
  print('# Re-read providers');
  
  final getterClass2 = container.read(getterClassProvider);
  final lateFinalClass2 = container.read(lateFinalClassProvider);
  final injectionClass2 = container.read(injectionClassProvider);
  
  print('-----');
  print('# Retrieve value from newly readed providers');
  
  print('GetterClass.stateValue: ${getterClass2.stateValue}');
  print('LateFinalClass.stateValue: ${lateFinalClass2.stateValue}');
  print('InjectionClass.stateValue: ${injectionClass2.stateValue} <- changed');
}