org.macroing.cel4j.java.source.lexical

Enum NullLiteral

java.lang.Object

java.lang.Enum<NullLiteral>

org.macroing.cel4j.java.source.lexical.NullLiteral

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<NullLiteral>, InputElement, Literal, Token, org.macroing.cit.java.util.node.Node

public enum NullLiteral
extends java.lang.Enum<NullLiteral>
implements Literal

A NullLiteral denotes the nonterminal symbol NullLiteral, as defined by the Java Language Specification.

If the Java Language Specification is updated in a way that affects null, this enum may be updated to reflect those changes. This means that new elements could be added. But it's highly unlikely.

Since:

1.0.0

Author:

Jörgen Lundgren

Enum Constant Summary

Enum Constants

Enum Constant and Description
NULL A NullLiteral with a String representation that equals the String literal "null".

Method Summary

Modifier and Type	Method and Description
java.lang.String	toString() Returns a String representation of this NullLiteral instance.
static NullLiteral	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static NullLiteral[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.macroing.cit.java.util.node.Node

accept, accept

Enum Constant Detail

NULL

public static final NullLiteral NULL

A NullLiteral with a String representation that equals the String literal "null".

Method Detail

values

public static NullLiteral[] 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 (NullLiteral c : NullLiteral.values())
    System.out.println(c);

Returns:

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

valueOf

public static NullLiteral 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

toString

public java.lang.String toString()

Returns a String representation of this NullLiteral instance.

Overrides:

toString in class java.lang.Enum<NullLiteral>

Returns:

a String representation of this NullLiteral instance