trait IsReloadable[Service] extends AnyRef
IsReloadable[Service]
provides evidence that we know enough about the
structure of a service to create a reloadable version of it.
The reloadable
function creates a reloadable instance of the service that
forwards every ZIO method call to the underlying service, wrapped in a
zio.ScopedRef. The reloadable servservice allows the service to change
its behavior at runtime.
- Annotations
- @implicitNotFound( ... )
trait MyService { def foo: UIO[String] } val service1: MyService = new MyService { def foo = ZIO.succeed("zio1") } val service2: MyService = new MyService { def foo = ZIO.succeed("zio2") } for { ref <- ScopedRef.make(service1) reloadable = IsReloadable[MyService].reloadable(ref) res1 <- reloadable.foo _ <- ref.set(ZIO.succeed(service2)) res2 <- reloadable.foo } yield assertTrue(res1 == "zio1" && res2 == "zio2")
- Note
In order to successfully generate a reloadable service, the type
Service
must meet the following requirements:Service
should be either a trait or a class with a primary constructor without any term parameters.Service
should contain only ZIO methods or vals.Service
should not have any abstract type members.
Example:
Linear Supertypes
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