Package org.teavm.classlib.java.util

Class TOptional<T>

java.lang.Object

org.teavm.classlib.java.util.TOptional<T>

public final class TOptional<T>
extends Object

Method Summary

Modifier and Type	Method	Description
static <S> TOptional<S>	empty()
boolean	equals(Object obj)
TOptional<T>	filter(Predicate<? super T> predicate)
<U> TOptional<U>	flatMap(Function<? super T,TOptional<U>> mapper)
T	get()
int	hashCode()
void	ifPresent(Consumer<? super T> consumer)
void	ifPresentOrElse(Consumer<? super T> action, Runnable emptyAction)
boolean	isEmpty()
boolean	isPresent()
<U> TOptional<U>	map(Function<? super T,? extends U> mapper)
static <T> TOptional<T>	of(T value)
static <T> TOptional<T>	ofNullable(T value)
TOptional<T>	or(Supplier<? extends TOptional<? extends T>> supplier)
T	orElse(T other)
T	orElseGet(Supplier<? extends T> other)
T	orElseThrow()
<X extends Throwable> T	orElseThrow(Supplier<? extends X> exceptionSupplier)
TStream<T>	stream()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

empty

public static <S> TOptional<S> empty()

of

public static <T> TOptional<T> of(T value)

ofNullable

public static <T> TOptional<T> ofNullable(T value)

get

public T get()

isPresent

public boolean isPresent()

isEmpty

public boolean isEmpty()

stream

public TStream<T> stream()

ifPresent

public void ifPresent(Consumer<? super T> consumer)

filter

public TOptional<T> filter(Predicate<? super T> predicate)

map

public <U> TOptional<U> map(Function<? super T,? extends U> mapper)

flatMap

public <U> TOptional<U> flatMap(Function<? super T,TOptional<U>> mapper)

or

public TOptional<T> or(Supplier<? extends TOptional<? extends T>> supplier)

orElse

public T orElse(T other)

orElseGet

public T orElseGet(Supplier<? extends T> other)

ifPresentOrElse

public void ifPresentOrElse(Consumer<? super T> action,
 Runnable emptyAction)

orElseThrow

public <X extends Throwable> T orElseThrow(Supplier<? extends X> exceptionSupplier)
                                    throws X

Throws:

X

orElseThrow

public T orElseThrow()

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object