com.github.sviperll.adt4j.examples

Class Optional<T>

java.lang.Object

com.github.sviperll.adt4j.examples.Optional<T>

public class Optional<T>
extends Object

Method Summary

Modifier and Type	Method and Description
<R,E extends Exception> R	accept(OptionalVisitor<T,R,E> visitor)
boolean	equals(Object thatObject)
<U> Optional<U>	flatMap(Function<T,Optional<U>> function)
T	getValue()
int	hashCode()
static <T> Optional<T>	missing()
static <T> Optional<T>	present(T value)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

missing

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

present

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

flatMap

public <U> Optional<U> flatMap(Function<T,Optional<U>> function)

accept

public final <R,E extends Exception> R accept(OptionalVisitor<T,R,E> visitor)
                                       throws E extends Exception

Throws:

E extends Exception

getValue

@Nonnull
public final T getValue()

equals

public final boolean equals(Object thatObject)

Overrides:

equals in class Object

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

toString

@Nonnull
public final String toString()

Overrides:

toString in class Object