• package root
    Definition Classes
  • package com
    Definition Classes
  • package twitter

    Start with com.twitter.finagle.

    Definition Classes
  • package finagle

    Finagle is an extensible RPC system.

    Finagle is an extensible RPC system.

    Services are represented by class com.twitter.finagle.Service. Clients make use of com.twitter.finagle.Service objects while servers implement them.

    Finagle contains a number of protocol implementations; each of these implement Client and/or com.twitter.finagle.Server. For example, Finagle's HTTP implementation, com.twitter.finagle.Http (in package finagle-http), exposes both.

    Thus a simple HTTP server is built like this:

    import com.twitter.finagle.{Http, Service}
    import com.twitter.finagle.http.{Request, Response}
    import com.twitter.util.{Await, Future}
    val service = new Service[Request, Response] {
      def apply(req: Request): Future[Response] =
    val server = Http.server.serve(":8080", service)

    We first define a service to which requests are dispatched. In this case, the service returns immediately with a HTTP 200 OK response, and with no content.

    This service is then served via the Http protocol on TCP port 8080. Finally we wait for the server to stop serving.

    We can now query our web server:

    % curl -D - localhost:8080
    HTTP/1.1 200 OK

    Building an HTTP client is also simple. (Note that type annotations are added for illustration.)

    import com.twitter.finagle.{Http, Service}
    import com.twitter.finagle.http.{Request, Response}
    import com.twitter.util.{Future, Return, Throw}
    val client: Service[Request, Response] = Http.client.newService("localhost:8080")
    val f: Future[Response] = client(Request()).respond {
      case Return(rep) =>
        printf("Got HTTP response %s\n", rep)
      case Throw(exc) =>
        printf("Got error %s\n", exc)

    Http.client.newService("localhost:8080") constructs a new com.twitter.finagle.Service instance connected to localhost TCP port 8080. We then issue a HTTP/1.1 GET request to URI "/". The service returns a com.twitter.util.Future representing the result of the operation. We listen to this future, printing an appropriate message when the response arrives.

    The Finagle homepage contains useful documentation and resources for using Finagle.

    Definition Classes
  • package postgresql
    Definition Classes
  • package transport
    Definition Classes
  • object PgBuf
    Definition Classes
  • Reader
  • Writer

final class Writer extends AnyVal

Linear Supertypes
  1. Alphabetic
  2. By Inheritance
  1. Writer
  2. AnyVal
  3. Any
  1. Hide All
  2. Show All
  1. Public
  2. Protected

Instance Constructors

  1. new Writer(w: BufByteWriter)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
  2. final def ##: Int
    Definition Classes
  3. final def ==(arg0: Any): Boolean
    Definition Classes
  4. def array(a: PgArray): Writer
  5. final def asInstanceOf[T0]: T0
    Definition Classes
  6. def buf(b: Buf): Writer
  7. def build: Buf
  8. def byte(v: Byte): Writer
  9. def cstring(v: String): Writer
  10. def double(v: Double): Writer
  11. def float(v: Float): Writer
  12. def foreach[T](xs: Seq[T])(f: (Writer, T) => Writer): Writer
  13. def foreachUnframed[T](xs: Iterable[T])(f: (Writer, T) => Writer): Writer
  14. def format(f: Format): Writer
  15. def framed(f: (Writer) => Buf): Writer
  16. def framedBuf(b: Buf): Writer
  17. def getClass(): Class[_ <: AnyVal]
    Definition Classes
    AnyVal → Any
  18. def inet(i: Inet): Writer
  19. def int(v: Int): Writer
  20. final def isInstanceOf[T0]: Boolean
    Definition Classes
  21. def long(v: Long): Writer
  22. def name(n: Types.Name): Writer
  23. def numeric(n: Numeric): Writer
  24. def numericSign(sign: NumericSign): Writer
  25. def opt[T](o: Option[T])(f: (Writer, T) => Writer): Writer
  26. def short(v: Short): Writer
  27. def timestamp(ts: Timestamp): Writer
  28. def toString(): String
    Definition Classes
  29. def unsignedInt(v: Long): Writer
  30. def unsignedShort(v: Int): Writer
  31. def value(v: WireValue): Writer
  32. val w: BufByteWriter

Inherited from AnyVal

Inherited from Any