org.zkoss.poi.openxml4j.util

Class Nullable<E>

java.lang.Object

org.zkoss.poi.openxml4j.util.Nullable<E>

public final class Nullable<E>
extends java.lang.Object

An immutable object that could be defined as null.

Version:

0.9

Author:

Julien Chable

Constructor Summary

Constructors

Constructor and Description
Nullable() Constructor.
Nullable(E value) Constructor.

Method Summary

Modifier and Type	Method and Description
E	getValue() Get the store value if any.
boolean	hasValue() Get the status of this nullable.
void	nullify() Set the stored value to null.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Nullable

public Nullable()

Constructor.

Nullable

public Nullable(E value)

Constructor.

Parameters:

value - The value to set to this nullable.

Method Detail

getValue

public E getValue()

Get the store value if any.

Returns:

the store value

hasValue

public boolean hasValue()

Get the status of this nullable.

Returns:

true if the nullable store a value (empty string is considered to be a value) else false.

nullify

public void nullify()

Set the stored value to null.