akka.japi

Class Option<A>

java.lang.Object

akka.japi.Option<A>

All Implemented Interfaces:

java.lang.Iterable<A>

Direct Known Subclasses:

Option.Some

public abstract class Option<A>
extends java.lang.Object
implements java.lang.Iterable<A>

This class represents optional values. Instances of Option are either instances of case class Some or it is case object None.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Option.Some<A> Class Some[A] represents existing values of type A.
static class	Option.Some$

Constructor Summary

Constructors

Constructor and Description
Option()

Method Summary

Modifier and Type	Method and Description
abstract scala.Option<A>	asScala()
static void	forEach(java.util.function.Consumer<? super T> x$1)
static <T> Option<T>	fromScalaOption(scala.Option<T> scalaOption) Converts a Scala Option to a Java Option
abstract A	get()
abstract <B> B	getOrElse(B defaultValue) Returns a if this is some(a) or defaultValue if this is none.
boolean	isDefined()
abstract boolean	isEmpty()
java.util.Iterator<A>	iterator()
static <A> scala.Option<A>	java2ScalaOption(Option<A> o)
static <A> Option<A>	none() Option factory that creates None
static <A> Option<A>	option(A v) Option factory that creates None if v is null, Some(v) otherwise.
static <A> Option<A>	scala2JavaOption(scala.Option<A> o)
static <A> Option<A>	some(A v) Option factory that creates Some
static java.util.Spliterator<T>	spliterator()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

Option

public Option()

Method Detail

some

public static <A> Option<A> some(A v)

Option factory that creates Some

Parameters:

v - (undocumented)

Returns:

(undocumented)

none

public static <A> Option<A> none()

Option factory that creates None

Returns:

(undocumented)

option

public static <A> Option<A> option(A v)

Option factory that creates None if v is null, Some(v) otherwise.

Parameters:

v - (undocumented)

Returns:

(undocumented)

fromScalaOption

public static <T> Option<T> fromScalaOption(scala.Option<T> scalaOption)

Converts a Scala Option to a Java Option

Parameters:

scalaOption - (undocumented)

Returns:

(undocumented)

java2ScalaOption

public static <A> scala.Option<A> java2ScalaOption(Option<A> o)

scala2JavaOption

public static <A> Option<A> scala2JavaOption(scala.Option<A> o)

forEach

public static void forEach(java.util.function.Consumer<? super T> x$1)

spliterator

public static java.util.Spliterator<T> spliterator()

get

public abstract A get()

getOrElse

public abstract <B> B getOrElse(B defaultValue)

Returns a if this is some(a) or defaultValue if this is none.

Parameters:

defaultValue - (undocumented)

Returns:

(undocumented)

isEmpty

public abstract boolean isEmpty()

isDefined

public boolean isDefined()

asScala

public abstract scala.Option<A> asScala()

iterator

public java.util.Iterator<A> iterator()

Specified by:

iterator in interface java.lang.Iterable<A>