uk.kludje

Enum Nil

java.lang.Object

java.lang.Enum<Nil>

uk.kludje.Nil

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Nil>

public enum Nil
extends java.lang.Enum<Nil>

Instance for when an arbitrary type and value is required. Usually, for when you want to use Void in generics but don't want null values or arbitrary instances of Void.

Enum Constant Summary

Enum Constants

Enum Constant and Description
NIL The one and only instance of Nil

Method Summary

Modifier and Type	Method and Description
static Nil	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Nil[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NIL

public static final Nil NIL

The one and only instance of Nil

Method Detail

values

public static Nil[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Nil c : Nil.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Nil valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null