public class Optional<T> extends java.lang.Object
T
get()
boolean
isDefined()
static <T> Optional<T>
none()
some(T value)
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public static <T> Optional<T> none()
public static <T> Optional<T> some(T value)
public boolean isDefined()
public T get()