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org.apache.poi.openxml4j.util
Class Nullable<E>

java.lang.Object
  extended by org.apache.poi.openxml4j.util.Nullable<E>

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

An immutable object that could be defined as null.

Constructor Summary
Nullable()
          Constructor.
Nullable(E value)
          Constructor.
 
Method Summary
 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.

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