Packages

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

    Start with com.twitter.finagle.

    Start with com.twitter.finagle.

    Definition Classes
    com
  • 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] =
    Future.value(Response())
}
val server = Http.server.serve(":8080", service)
Await.ready(server)

    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
    twitter
  • package postgresql
    Definition Classes
    finagle
  • package transport
    Definition Classes
    postgresql
  • MessageDecoder
  • MessageEncoder
  • PgBuf
  • PgTransportContext

object MessageDecoder

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  1. final def !=(arg0: Any): Boolean
    Definition Classes
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  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def apply[M <: BackendMessage](f: (Reader) => M): MessageDecoder[M]
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. implicit lazy val authenticationMessageDecoder: MessageDecoder[AuthenticationMessage]
  7. implicit lazy val backendKeyDataDecoder: MessageDecoder[BackendKeyData]
  8. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
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    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  9. implicit lazy val commandCompleteDecoder: MessageDecoder[CommandComplete]
  10. def commandTag(value: String): CommandTag
  11. implicit lazy val copyDataDecoder: MessageDecoder[CopyData]
  12. implicit lazy val copyInResponseDecoder: MessageDecoder[CopyInResponse]
  13. implicit lazy val copyOutResponseDecoder: MessageDecoder[CopyOutResponse]
  14. implicit lazy val dataRowDecoder: MessageDecoder[DataRow]
  15. def decode[M <: BackendMessage](reader: Reader)(implicit decoder: MessageDecoder[M]): M
  16. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  18. implicit lazy val errorResponseDecoder: MessageDecoder[ErrorResponse]
  19. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  20. def fromBuf(buf: Buf): BackendMessage
  21. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  22. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  23. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  24. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  25. implicit lazy val noticeResponseDecoder: MessageDecoder[NoticeResponse]
  26. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  27. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  28. implicit lazy val parameterDescriptionDecoder: MessageDecoder[ParameterDescription]
  29. implicit lazy val parameterStatusDecoder: MessageDecoder[ParameterStatus]
  30. def readFields(reader: Reader): Map[Field, String]
  31. implicit lazy val readyForQueryDecoder: MessageDecoder[ReadyForQuery]
  32. implicit lazy val rowDescriptionDecoder: MessageDecoder[RowDescription]
  33. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  34. def toString(): String
    Definition Classes
    AnyRef → Any
  35. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  36. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  37. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

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