org.openjdk.jmh.util

Class Optional<T>

java.lang.Object

org.openjdk.jmh.util.Optional<T>

Type Parameters:

T - stored value.

All Implemented Interfaces:

Serializable

public class Optional<T>
extends Object
implements Serializable

Option class

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Optional.Marshaller<T>
static interface	Optional.Unmarshaller<T>

Method Summary

Methods

Modifier and Type	Method and Description
static <T> Optional<T>	eitherOf(T val)
boolean	equals(Object o)
T	get()
int	hashCode()
boolean	hasValue()
static <T> Optional<T>	none() Produce empty Option
static <T> Optional<T>	of(String source, Optional.Unmarshaller<T> unmarshaller) Parse the existing string value into the Option
static <T> Optional<T>	of(T val) Wrap the existing value in Option.
Optional<T>	orAnother(Optional<T> alternative)
T	orElse(T elseVal)
String	toString()
String	toString(Optional.Marshaller<T> m)

Methods inherited from class java.lang.Object

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

Method Detail

orElse

public T orElse(T elseVal)

orAnother

public Optional<T> orAnother(Optional<T> alternative)

none

public static <T> Optional<T> none()

Produce empty Option

Type Parameters:

T - type

Returns:

empty option

of

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

Wrap the existing value in Option.

Type Parameters:

T - type

Parameters:

val - value to wrap

Returns:

option with value

of

public static <T> Optional<T> of(String source,
                 Optional.Unmarshaller<T> unmarshaller)

Parse the existing string value into the Option

Type Parameters:

T - type

Parameters:

source - source string

unmarshaller - unmarshaller lambda parsing the (String -> T)

Returns:

value wrapped in the Option

eitherOf

public static <T> Optional<T> eitherOf(T val)

hasValue

public boolean hasValue()

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(Optional.Marshaller<T> m)

get

public T get()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object