Package com.landawn.abacus.util

Class u.OptionalFloat

java.lang.Object

com.landawn.abacus.util.u.OptionalFloat

All Implemented Interfaces:

Immutable, Comparable<u.OptionalFloat>

Enclosing class:

u

@Immutable
public static final class u.OptionalFloat
extends Object
implements Comparable<u.OptionalFloat>, Immutable

The Class OptionalFloat.

Method Summary

Modifier and Type	Method	Description
u.Optional<Float>	boxed()
int	compareTo(u.OptionalFloat optional)
static u.OptionalFloat	empty()
boolean	equals(Object obj)
<E extends Exception> u.OptionalFloat	filter(Throwables.FloatPredicate<E> predicate)
<E extends Exception> u.OptionalFloat	flatMap(Throwables.FloatFunction<u.OptionalFloat,E> mapper)
float	get()
int	hashCode()
<E extends Exception> u.OptionalFloat	ifPresent(Throwables.FloatConsumer<E> action)
<E extends Exception, E2 extends Exception> u.OptionalFloat	ifPresentOrElse(Throwables.FloatConsumer<E> action, Throwables.Runnable<E2> emptyAction)	If present or else.
boolean	isEmpty()
boolean	isPresent()
<E extends Exception> u.OptionalFloat	map(Throwables.FloatUnaryOperator<E> mapper)
<E extends Exception> u.OptionalDouble	mapToDouble(Throwables.ToDoubleFunction<Float,E> mapper)	Map to double.
<E extends Exception> u.OptionalInt	mapToInt(Throwables.ToIntFunction<Float,E> mapper)	Map to int.
<T, E extends Exception> u.Optional<T>	mapToNonNull(Throwables.FloatFunction<T,E> mapper)
<T, E extends Exception> u.Nullable<T>	mapToObj(Throwables.FloatFunction<T,E> mapper)	Map to obj.
static u.OptionalFloat	of(float value)
static u.OptionalFloat	ofNullable(Float val)
<E extends Exception> u.OptionalFloat	or(Throwables.Supplier<u.OptionalFloat,E> supplier)
float	orElse(float other)
<E extends Exception> float	orElseGet(Throwables.FloatSupplier<E> other)	Or else get.
float	orElseThrow()	Or else throw.
float	orElseThrow(String errorMessage)	Or else throw.
float	orElseThrow(String errorMessage, Object param)	Or else throw.
float	orElseThrow(String errorMessage, Object... params)	Or else throw.
float	orElseThrow(String errorMessage, Object param1, Object param2)	Or else throw.
float	orElseThrow(String errorMessage, Object param1, Object param2, Object param3)	Or else throw.
<X extends Throwable> float	orElseThrow(Supplier<? extends X> exceptionSupplier)	Or else throw.
float	orElseZero()
float	orZero()	Deprecated. use orElseZero()
FloatStream	stream()
ImmutableList<Float>	toImmutableList()	To immutable list.
ImmutableSet<Float>	toImmutableSet()	To immutable set.
List<Float>	toList()
Set<Float>	toSet()
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Details

empty

public static u.OptionalFloat empty()

Returns:

of

public static u.OptionalFloat of(float value)

Parameters:

value -

Returns:

ofNullable

public static u.OptionalFloat ofNullable(Float val)

Parameters:

val -

Returns:

get

public float get()
          throws NoSuchElementException

Returns:

Throws:

NoSuchElementException - the no such element exception

isPresent

public boolean isPresent()

Returns:

isEmpty

public boolean isEmpty()

Returns:

ifPresent

public <E extends Exception> u.OptionalFloat ifPresent(Throwables.FloatConsumer<E> action)
                                                throws E

Type Parameters:

E -

Parameters:

action -

Returns:

Throws:

E - the e

ifPresentOrElse

public <E extends Exception,
E2 extends Exception>
u.OptionalFloat ifPresentOrElse(Throwables.FloatConsumer<E> action,
 Throwables.Runnable<E2> emptyAction)
                         throws E,
E2

If present or else.

Type Parameters:

E -

E2 -

Parameters:

action -

emptyAction -

Returns:

Throws:

E - the e

E2 - the e2

filter

public <E extends Exception> u.OptionalFloat filter(Throwables.FloatPredicate<E> predicate)
                                             throws E

Type Parameters:

E -

Parameters:

predicate -

Returns:

Throws:

E - the e

map

public <E extends Exception> u.OptionalFloat map(Throwables.FloatUnaryOperator<E> mapper)
                                          throws E

Type Parameters:

E -

Parameters:

mapper -

Returns:

Throws:

E - the e

mapToInt

public <E extends Exception> u.OptionalInt mapToInt(Throwables.ToIntFunction<Float,E> mapper)
                                             throws E

Map to int.

Type Parameters:

E -

Parameters:

mapper -

Returns:

Throws:

E - the e

mapToDouble

public <E extends Exception> u.OptionalDouble mapToDouble(Throwables.ToDoubleFunction<Float,E> mapper)
                                                   throws E

Map to double.

Type Parameters:

E -

Parameters:

mapper -

Returns:

Throws:

E - the e

mapToObj

public <T,
E extends Exception> u.Nullable<T> mapToObj(Throwables.FloatFunction<T,E> mapper)
                                               throws E

Map to obj.

Type Parameters:

T -

E -

Parameters:

mapper -

Returns:

Throws:

E - the e

mapToNonNull

public <T,
E extends Exception> u.Optional<T> mapToNonNull(Throwables.FloatFunction<T,E> mapper)
                                                   throws E

Type Parameters:

T -

E -

Parameters:

mapper -

Returns:

Throws:

E

flatMap

public <E extends Exception> u.OptionalFloat flatMap(Throwables.FloatFunction<u.OptionalFloat,E> mapper)
                                              throws E

Type Parameters:

E -

Parameters:

mapper -

Returns:

Throws:

E - the e

or

public <E extends Exception> u.OptionalFloat or(Throwables.Supplier<u.OptionalFloat,E> supplier)
                                         throws E

Type Parameters:

E -

Parameters:

supplier -

Returns:

Throws:

E - the e

orZero

@Deprecated
public float orZero()

Deprecated.

use orElseZero()

Returns:

orElseZero

public float orElseZero()

Returns:

orElse

public float orElse(float other)

Parameters:

other -

Returns:

orElseGet

public <E extends Exception> float orElseGet(Throwables.FloatSupplier<E> other)
                                      throws E

Or else get.

Type Parameters:

E -

Parameters:

other -

Returns:

Throws:

E - the e

orElseThrow

public float orElseThrow()
                  throws NoSuchElementException

Or else throw.

Returns:

Throws:

NoSuchElementException - the no such element exception

orElseThrow

@Beta
public float orElseThrow(String errorMessage)
                  throws NoSuchElementException

Or else throw.

Parameters:

errorMessage -

Returns:

Throws:

NoSuchElementException - the no such element exception

orElseThrow

@Beta
public float orElseThrow(String errorMessage,
 Object param)
                  throws NoSuchElementException

Or else throw.

Parameters:

errorMessage -

param -

Returns:

Throws:

NoSuchElementException - the no such element exception

orElseThrow

@Beta
public float orElseThrow(String errorMessage,
 Object param1,
 Object param2)
                  throws NoSuchElementException

Or else throw.

Parameters:

errorMessage -

param1 -

param2 -

Returns:

Throws:

NoSuchElementException - the no such element exception

orElseThrow

@Beta
public float orElseThrow(String errorMessage,
 Object param1,
 Object param2,
 Object param3)
                  throws NoSuchElementException

Or else throw.

Parameters:

errorMessage -

param1 -

param2 -

param3 -

Returns:

Throws:

NoSuchElementException - the no such element exception

orElseThrow

@Beta
public float orElseThrow(String errorMessage,
 Object... params)
                  throws NoSuchElementException

Or else throw.

Parameters:

errorMessage -

params -

Returns:

Throws:

NoSuchElementException - the no such element exception

orElseThrow

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

Or else throw.

Type Parameters:

X -

Parameters:

exceptionSupplier -

Returns:

Throws:

X - the x

stream

public FloatStream stream()

Returns:

toList

public List<Float> toList()

Returns:

toSet

public Set<Float> toSet()

Returns:

toImmutableList

public ImmutableList<Float> toImmutableList()

To immutable list.

Returns:

toImmutableSet

public ImmutableSet<Float> toImmutableSet()

To immutable set.

Returns:

boxed

public u.Optional<Float> boxed()

Returns:

compareTo

public int compareTo(u.OptionalFloat optional)

Specified by:

compareTo in interface Comparable<u.OptionalFloat>

Parameters:

optional -

Returns:

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

Parameters:

obj -

Returns:

hashCode

public int hashCode()

Overrides:

hashCode in class Object

Returns:

toString

public String toString()

Overrides:

toString in class Object

Returns: