Null

Overview

Package

Class

Tree

Deprecated

Index

Help

PREV CLASS (src) NEXT CLASS (src)

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

org.jboss.util
Class Null

java.lang.Object
  org.jboss.util.Null

All Implemented Interfaces:: java.io.Serializable

public final class Null
extends java.lang.Object
implements java.io.Serializable

A class that represents null.

VALUE is used to given an object variable a dual-mode nullified value, where null would indicate that the value is empty, and VALUE would idicate that the value has been set to null (or something to that effect).

See Also:: Serialized Form

Field Summary
`static Null (src)`	`VALUE` The primary instance of Null.

Method Summary
`boolean`	`equals(java.lang.Object obj)` Check if the given object is a Null instance or `null`.
`int`	`hashCode()` Returns zero.
`java.lang.String`	`toString()` Return a string representation.

Methods inherited from class java.lang.Object

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

Field Detail

VALUE

public static final Null (src)  VALUE

The primary instance of Null.

Method Detail

toString

public java.lang.String toString()

Return a string representation.

Returns:: Null

hashCode

public int hashCode()

Returns zero.

Returns:: Zero.

equals

public boolean equals(java.lang.Object obj)

Check if the given object is a Null instance or null.

Parameters:: obj - Object to test.
Returns:: True if the given object is a Null instance or null.