Guice - Functional Module.scala

case class FunctionalModuleAInProduction extends FunctionalModuleA {
  def configure() {
    bind[ClassA].to[ImplementationA]
  }
}
 
case class FunctionalModuleAInDevelopment extends FunctionalModuleA {
  def configure() {
    bind[ClassA].to[FakeImplementationA]
  }
}
 
case class FunctionalModuleBInProduction extends FunctionalModuleB {
  def configure() {
    bind[ClassB].to[ImplementationB]
  }
}
 
trait FunctionalModuleCDinProduction extends FunctionalModuleCD {
  def configure() {
    bind[ClassC].to[CommonImplementation]
  }
}
 
case class FunctionalModuleCDForServiceA extends FunctionalModuleCDInProduction {
  def classDProviderForServiceA: ClassD = serviceAInstanceOfClassD
}
 
case class FunctionalModuleCDForServiceB extends FunctionalModuleCDInProduction {
  def classDProviderForServiceB: ClassD = serviceBInstanceOfClassD
}