Get service from service registry with dependency injection?

[gel-hidden]

Lets say I populate the ServiceRegistry with some class and have a MVC controller like so:

@Path("/my-controller")
@Module
class MyController @Inject constructor(private val myService: MySerivce) {

    @GET
    fun helloWorld(ctx: Context): String {
        val serviceFromRegistry = ctx.require(ServiceFromRegistry::class.java, "serviceFromRegistry")
        ...
    }
}

Do I always need to use the contxt to get my service from the registry (ServiceFromRegistry)? Or is it possible to use guice as with the other service (MyService)?

[jknack]

The @Inject constructor will be provisioned by Guice.

Context is also a registry, so:

@GET fun helloWorld(ctx: Context): String { val myService = ctx.require(MyService::class.java) ... }

[gel-hidden]

I see, but can you do the other way around?

class MyController @Inject constructor(
    private val myService: MySerivce,
    @Named("serviceFromRegistry") private val serviceFromRegistry: ServiceFromRegistry
)

[jknack]

of course yea, all services from registry are exposed to Guice.

[gel-hidden]

Huh, I see. I tried it out but I got some strange Guice errors. But then I know it works. I'll figure it out!

(I might do another PR just to clarify that this two-way communication works).

[gel-hidden]

Just to clarify, if I use Named i could reference the name of the service key in the registry as shown above?

[jknack]

Name is available if you set/put the service with a name:

registry.put(ServiceKe("name", MyService.class))