org.codehaus.groovy.grails.web.json

Class JSONObject.Null

java.lang.Object

org.codehaus.groovy.grails.web.json.JSONObject.Null

Enclosing class:

JSONObject

public static final class JSONObject.Null
extends java.lang.Object

JSONObject.NULL is equivalent to the value that JavaScript calls null, whilst Java's null is equivalent to the value that JavaScript calls undefined.

Constructor Summary

Constructors

Constructor and Description
JSONObject.Null()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	asBoolean() Null in JSON should evaluate to false
protected java.lang.Object	clone() There is only intended to be a single instance of the NULL object, so the clone method returns itself.
boolean	equals(java.lang.Object object) A Null object is equal to the null value and to itself.
java.lang.String	toString() Get the "null" string value.

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

JSONObject.Null

public JSONObject.Null()

Method Detail

clone

protected final java.lang.Object clone()

There is only intended to be a single instance of the NULL object, so the clone method returns itself.

Overrides:

clone in class java.lang.Object

Returns:

NULL.

equals

public boolean equals(java.lang.Object object)

A Null object is equal to the null value and to itself.

Overrides:

equals in class java.lang.Object

Parameters:

object - An object to test for nullness.

Returns:

true if the object parameter is the JSONObject.NULL object or null.

asBoolean

public boolean asBoolean()

Null in JSON should evaluate to false

Returns:

false

toString

public java.lang.String toString()

Get the "null" string value.

Overrides:

toString in class java.lang.Object

Returns:

The string "null".