org.lsst.ccs.utilities.beanutils

Class Optional<T>

java.lang.Object

org.lsst.ccs.utilities.beanutils.Optional<T>

public class Optional<T>
extends Object

a Pre-java8 optional class to be replaced by java8 when needed.

Author:

bamade

Method Summary

Methods

Modifier and Type	Method and Description
static <T> Optional<T>	empty()
boolean	equals(Object obj)
T	get()
int	hashCode()
boolean	isPresent()
static <T> Optional<T>	of(T value)
static <T> Optional<T>	ofNullable(T value)
T	orElse(T other)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

empty

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

of

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

ofNullable

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

get

public T get()

isPresent

public boolean isPresent()

orElse

public T orElse(T other)

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