Type Members

1.  final class JsonTunableMapper extends AnyRef

   Parses a given JSON string into a TunableMap.

   Parses a given JSON string into a TunableMap. The expected format is:

   "tunables":
     [
        {
          "id" : "$id1",
          "value" : $value,
          "type" : "$class"
        },
        {
          "id" : "$id2",
          "value" : $value,
          "type" : "$class",
          "comment": "optional comment"
        }
    ]

   Where $id1 and $id2 are unique identifiers used to access the Tunable, $value is the value, and $class is the fully-qualified class name (e.g. com.twitter.util.Duration)

   If the JSON is invalid, or contains duplicate ids for Tunables, parse will return a Throw. Otherwise, parse returns Return[TunableMap

2.  trait ServiceLoadedTunableMap extends TunableMap

   TunableMap loaded through com.twitter.app.LoadService.

3.  sealed abstract class Tunable[T] extends AnyRef

   A Tunable is an abstraction for an object that produces a Some(value) or None when applied.

   A Tunable is an abstraction for an object that produces a Some(value) or None when applied. Implementations may enable mutation, such that successive applications of the Tunable produce different values.

   For more information about Tunables, see https://twitter.github.io/finagle/guide/Configuration.html#tunables

   T

   type of value this Tunable holds

4.  abstract class TunableMap extends AnyRef

   A Map that can be used to access Tunables using TunableMap.Keys.