Class Optional<T>

java.lang.Object

org.reactivestreams.tck.flow.support.Optional<T>

Direct Known Subclasses:

Optional.Some

public abstract class Optional<T>
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Optional.Some<T>

Field Summary

Fields

Modifier and Type	Field	Description
private static final Optional<Object>	NONE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Optional()

Method Summary

Modifier and Type	Method	Description
static <T> Optional<T>	empty()
abstract T	get()
boolean	isDefined()
abstract boolean	isEmpty()
static <T> Optional<T>	of(T it)
String	toString()

Methods inherited from class Object

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

Field Details

NONE

private static final Optional<Object> NONE

Constructor Details

Optional

private Optional()

Method Details

empty

public static <T> Optional<T> empty()

of

public static <T> Optional<T> of(T it)

get

public abstract T get()

isEmpty

public abstract boolean isEmpty()

isDefined

public boolean isDefined()

toString

public String toString()

Overrides:

toString in class Object