de.intarsys.tools.collection

Class EmptyIterator

java.lang.Object

de.intarsys.tools.collection.EmptyIterator

All Implemented Interfaces:

java.util.Iterator

public class EmptyIterator
extends java.lang.Object
implements java.util.Iterator

An Iterator over an empty collection.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.Iterator	UNIQUE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EmptyIterator() Create an EmptyIterator.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext() Return always false as an emtpy iterator has no elements.
java.lang.Object	next() Throw always exception, as an empty enumeration has no elements.
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

UNIQUE

public static final java.util.Iterator UNIQUE

Constructor Detail

EmptyIterator

protected EmptyIterator()

Create an EmptyIterator.

Method Detail

hasNext

public boolean hasNext()

Return always false as an emtpy iterator has no elements.

Specified by:

hasNext in interface java.util.Iterator

Returns:

Return always false as an emtpy iterator has no elements.

next

public java.lang.Object next()

Throw always exception, as an empty enumeration has no elements.

Specified by:

next in interface java.util.Iterator

Returns:

never

Throws:

java.util.NoSuchElementException - Is thrown always

remove

public void remove()

Specified by:

remove in interface java.util.Iterator