net.datastructures
Class ElementIterator<E>

java.lang.Object
  net.datastructures.ElementIterator<E>

All Implemented Interfaces:

Iterator<E>

public class ElementIterator<E>
extends Object
implements Iterator<E>

A simple iterator class for lists. The elements of a list are returned by this iterator. No copy of the list is made, so any changes to the list are reflected in the iterator.

Author:

Michael Goodrich, Eric Zamore, Roberto Tamassia

Field Summary

protected Position<E>	cursor
protected PositionList<E>	list

Constructor Summary

ElementIterator(PositionList<E> L)
Creates an element iterator over the given list.

Method Summary

boolean	hasNext() Returns whether the iterator has a next object.
E	next() Returns the next object in the iterator.
void	remove() Throws an UnsupportedOperationException in all cases, because removal is not a supported operation in this iterator.

Methods inherited from class java.lang.Object

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

Field Detail

list

protected PositionList<E> list

cursor

protected Position<E> cursor

Constructor Detail

ElementIterator

public ElementIterator(PositionList<E> L)

Creates an element iterator over the given list.

Method Detail

hasNext

public boolean hasNext()

Returns whether the iterator has a next object.

Specified by:

hasNext in interface Iterator<E>

next

public E next()
       throws NoSuchElementException

Returns the next object in the iterator.

Specified by:

next in interface Iterator<E>

Throws:

NoSuchElementException

remove

public void remove()
            throws UnsupportedOperationException

Throws an UnsupportedOperationException in all cases, because removal is not a supported operation in this iterator.

Specified by:

remove in interface Iterator<E>

Throws:

UnsupportedOperationException