Uses of Interface
javascalautils.Option

Packages that use Option

Package	Description
javascalautils	Introducing some of the core concepts of Scala into Java. The aim with these utility classes is to provide neat and concise programming patterns. Details and Wiki can be found at: https://github.com/pnerg/java-scala-util
javascalautils.concurrent	Contains utilities for concurrent/asynchronous programming.

Uses of Option in javascalautils

Classes in javascalautils that implement Option

Modifier and Type	Class and Description
class	None<T> Represents an empty Option.
class	Some<T> Represents an Option holding a value.

Methods in javascalautils that return Option

Modifier and Type	Method and Description
static <T> Option<T>	Option.apply(T value) Creates an instance of Option. If a null value is provided then None is returned, else Some containing the provided value.
default Option<T>	Try.asOption() Returns this Try as an Option.
static <T> Option<T>	Option.empty() Returns an empty Option. In practice this returns a singleton as it anyways cannot represent a value/state.
Option<Either<L,R>>	LeftProjection.filter(java.util.function.Predicate<L> predicate) Returns a Some wrapping the Either if it's a Left and the value of the Left matches the predicate, else None .
Option<Either<L,R>>	RightProjection.filter(java.util.function.Predicate<R> predicate) Returns a Some wrapping the Either if it's a Right and the value of the Right matches the predicate, else None .
default Option<T>	Option.filter(java.util.function.Predicate<T> p) Returns this Option if it is nonempty and applying the predicate p to this Option's value returns true.
default Option<T>	Option.filterNot(java.util.function.Predicate<T> p) Returns this Option if it is nonempty and applying the predicate p to this Option's value returns false.
<R> Option<R>	None.flatMap(java.util.function.Function<T,Option<R>> function) Always returns this.
<R> Option<R>	Option.flatMap(java.util.function.Function<T,Option<R>> function) Returns an Option consisting of the result of applying the given function to the current Some.
<R> Option<R>	Some.flatMap(java.util.function.Function<T,Option<R>> function) Returns an Option consisting of the result of applying the given function to the current value.
<R> Option<R>	None.map(java.util.function.Function<T,R> f) Always returns this.
<R> Option<R>	Option.map(java.util.function.Function<T,R> function) Returns an Option consisting of the result of applying the given function to the current Some.
<R> Option<R>	Some.map(java.util.function.Function<T,R> f) Returns an Option consisting of the result of applying the given function to the current value.
static <T> Option<T>	Option.None() Returns an empty Option. This is the same as empty() but with the difference it provides a more Scala like feeling if the method is statically imported.
static <T> Option<T>	Option.ofOptional(Optional<T> optional) Converts the Optional to a corresponding Option.
Option<T>	None.orElse(java.util.function.Supplier<Option<T>> s) Always the value provided by the supplier.
Option<T>	Option.orElse(java.util.function.Supplier<Option<T>> supplier) Returns this Option if it is nonempty, otherwise return the result of provided by the supplier.
Option<T>	Some.orElse(java.util.function.Supplier<Option<T>> s) Always returns this.

Method parameters in javascalautils with type arguments of type Option

Modifier and Type	Method and Description
<R> Option<R>	None.flatMap(java.util.function.Function<T,Option<R>> function) Always returns this.
<R> Option<R>	Option.flatMap(java.util.function.Function<T,Option<R>> function) Returns an Option consisting of the result of applying the given function to the current Some.
<R> Option<R>	Some.flatMap(java.util.function.Function<T,Option<R>> function) Returns an Option consisting of the result of applying the given function to the current value.
Option<T>	None.orElse(java.util.function.Supplier<Option<T>> s) Always the value provided by the supplier.
Option<T>	Option.orElse(java.util.function.Supplier<Option<T>> supplier) Returns this Option if it is nonempty, otherwise return the result of provided by the supplier.
Option<T>	Some.orElse(java.util.function.Supplier<Option<T>> s) Always returns this.

Uses of Option in javascalautils.concurrent

Methods in javascalautils.concurrent that return Option

Modifier and Type	Method and Description
Option<Try<T>>	Future.value() The value of the future.