Using Guice 3 with JAX-WS in Java 6 outside web container

Question

We have a situation where we use JSR-330 based injections to configure our stand-alone Java 6 applications, which works very well for getting configuration parameters across all

Answer 1

you need to use the AbstractMultiInstanceResolver extension point.

create the annotation GuiceManaged;

@Retention(RUNTIME)
@Target(TYPE)
@Documented
@WebServiceFeatureAnnotation(id=GuiceManagedFeature.ID, bean=GuiceManagedFeature.class)
@InstanceResolverAnnotation(GuiceManagedInstanceResolver.class)
public @interface GuiceManaged {
}

implement the GuiceManagedFeature which is WebServiceFeature :

public class GuiceManagedFeature extends WebServiceFeature {
    public static final String ID="FEATURE_GuiceManaged";

    @FeatureConstructor
    public GuiceManagedFeature()
    {
        this.enabled=true;
    }

    public String getID() {
        return ID;
    }
}

Implement InstanceResolver by Extending AbstractMultiInstanceResolver

public class GuiceManagedInstanceResolver extends AbstractMultiInstanceResolver {
    private T instance=null;
    public GuiceManagedInstanceResolver(@NotNull Class clazz)
    {
        super(clazz);
    }
    public T resolve(@NotNull Packet request) {
        if(instance==null)
        {
            instance=create();
            Injector injector= Guice.createInjector(new WebServiceModule());
            injector.injectMembers(instance);
        }
        return instance;
    }
}

Now Annotate your Service with @GuiceManaged & use @Inject for method level DI on your business method.