CamelServiceManager.service returns Option[CamelService] (Scala API)

CamelServiceManager.getService() returns Option[CamelService] (Java API)
Re #457
This commit is contained in:
Martin Krasser 2010-10-05 11:13:27 +02:00
parent a21077707e
commit 353d01cf05
8 changed files with 95 additions and 42 deletions

View file

@ -1,23 +1,70 @@
package se.scalablesolutions.akka.util
/** A Function interface
* Used to create first-class-functions is Java (sort of)
* Java API
*/
trait Function[T,R] {
def apply(param: T): R
object JavaAPI {
/** A Function interface
* Used to create first-class-functions is Java (sort of)
* Java API
*/
trait Function[T,R] {
def apply(param: T): R
}
/** A Procedure is like a Function, but it doesn't produce a return value
* Java API
*/
trait Procedure[T] {
def apply(param: T): Unit
}
/**
* An executable piece of code that takes no parameters and doesn't return any value
*/
trait SideEffect {
def apply: Unit
}
/**
* This class represents optional values. Instances of <code>Option</code>
* are either instances of case class <code>Some</code> or it is case
* object <code>None</code>.
* <p>
* Java API
*/
sealed abstract class Option[A] extends java.lang.Iterable[A] {
def get: A
def isDefined: Boolean
}
/**
* Class <code>Some[A]</code> represents existing values of type
* <code>A</code>.
* <p>
* Java API
*/
final case class Some[A](v: A) extends Option[A] {
import scala.collection.JavaConversions._
val sv = scala.Some(v)
def get = sv.get
def iterator = sv.iterator
def isDefined = true
}
/**
* This case object represents non-existent values.
* <p>
* Java API
*/
case class None[A]() extends Option[A] {
import scala.collection.JavaConversions._
def get = throw new NoSuchElementException("None.get")
def iterator = scala.None.iterator
def isDefined = false
}
def some[A](v: A) = Some(v)
def none[A] = None[A]
}
/** A Procedure is like a Function, but it doesn't produce a return value
* Java API
*/
trait Procedure[T] {
def apply(param: T): Unit
}
/**
* An executable piece of code that takes no parameters and doesn't return any value
*/
trait SideEffect {
def apply: Unit
}