'@Configuration' is not applicable to parameter

[costimuraru]

Hey

I'm trying to inject a config param, as shown in the example below, but I'm receiving the following error: '@Configuration' is not applicable to parameter.

public class AppConfig {

    private String numberOfThings;

    @Inject
    public AppConfig(@Configuration("configs.qty.things") String numberOfThings) {
        this.numberOfThings = numberOfThings;
    }
}

I'm basically trying to obtain the same behavior as with the @Named("someValue") annonation in Guice.

Looking at the @Configuration annonation target I can see only ElementType.FIELD and ElementType.METHOD. No ElementType.PARAMETER is specified. Am I doing something wrong?

[elandau]

'@configuration' cannot work on constructor arguments as Guice does not support custom injections like this. Try this instead

public class AppConfig {
   @Configuration("config.qty.things")
    private String numberOfThings;
}

[Loki-Afro]

@elandau and if @Configuration "extends" @Named? I am by far no guice expert but @BindingAnnotation insists this behavior by saying

Annotates annotations which are used for binding.

could you elaborate on that?