Angular 2: Property injection instead of constructor injection

Question

Can I do this:

export class BaseComponent {
protected config: IConfig;

@Inject(AppConfig) protected appConfig: AppConfig;

constructor() 
{ 
    this.config = this.appConfig.getConfig();    
}

instead of this:

export class BaseComponent {
config: IConfig;

constructor(
    private appConfig: AppConfig,
    ) 
{ 
    this.config = appConfig.getConfig();    
}

The goal is to simplify the constructor signature, so all child component to not need to specify appConfig in their constructor. So the components that inherits from BaseComponent to look like this:

@Component({
    selector: 'sport-templates',
    templateUrl: 'templates.component.html',
    styleUrls: [ 'templates.component.scss' ],
    encapsulation: ViewEncapsulation.None
})
export class SportTemplates extends BaseComponent implements OnInit {

    constructor() {
        super();
    }

instead like this:

@Component({
    selector: 'sport-templates',
    templateUrl: 'templates.component.html',
    styleUrls: [ 'templates.component.scss' ],
    encapsulation: ViewEncapsulation.None
})
export class SportTemplates extends BaseComponent implements OnInit {

    constructor(appConfig: AppConfig) {
        super(appConfig);
     }

Answer 1

You can do this:

myService: MyService = this.injector.get(MyService);
constructor(private injector:Injector) {}

The Injector is in @angular/core