Scala Guice pass parameter

Question

I have the following Guice binding:

val profile = "dev";
bind[DbClient].annotatedWith(Names.named("postgres")).to[PostgresClient].in[Singleton]

I'd like to pass profile as a parameter to PostgresClient instance. Please advice how it can be achieved with Guice and Scala.

Answer 1

You can work with @Provides (described here: https://github.com/google/guice/wiki/ProvidesMethods)

And construct your DbClient manually

  @Provides
  @Singleton
  @Named("postgres")
  def provideDbClient(): DbClient = {
    new PostgresClient("dev")
  }

I haven't tried @Singleton - but the rest we us frequently.