I've found a workaround. Not elegant, but it works:
public class ArticlePage extends WebPage
{
@SpringBean
private ArticleRepository repository;
private Article article;
public ArticlePage()
{
InjectorHolder.getInjector().inject(this);
construct(repository.findByName("index"));
}
private void construct(Article article)
{
add(new Label("name", new PropertyModel(article, "name")));
//...
}
}
It looks a bit better than service locator pattern but not much. Any other
suggestions?
Regards
Christian
--
http://www.groovy-forum.de
----- Ursprüngliche Mail ----
> Von: Christian Helmbold <christian.helmb...@yahoo.de>
> An: users@wicket.apache.org
> Gesendet: Samstag, den 28. Februar 2009, 20:14:02 Uhr
> Betreff: AW: NullPointerExceptions due to missing Spring constructor injection
>
> Hi Martjin,
>
> it is not possible to compile the code without static. Without static I get
> the
> compiler error: "cannot reference repository before supertype constructor has
> been called". But I cannot write
> public ArticlePage()
> {
> super();
> this();
> }
> because each of them must be the first statement in the constructor. And I
> cannot inject the reference directly into the constructor because of the
> mentioned restriction of Wickets Spring integration (no constructor
> injection).
>
> The only way out of this dilemma seems to be not to inject the repository.
> But
> if I cannot use injected reference within constructors I don't know why I
> should
> use Dependency Injection (DI). The constructors are very important in most
> classes of Wicket applications. I could use the the service locator pattern
> with
> it's pros and cons. But I hope there is a solution with DI ...
>
> Regards
> Christian
>
> --
> http://www.groovy-forum.de
>
>
>
>
>
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