cz.cuni.amis.utils.iterators
Class CircularListIterator<E>

java.lang.Object
  cz.cuni.amis.utils.iterators.CircularListIterator<E>

Type Parameters:

E - contents of the iterable

All Implemented Interfaces:

Iterator<E>, ListIterator<E>

public class CircularListIterator<E>
extends Object
implements ListIterator<E>

Implements a circular iterator that iterates over any List instance instance. Useful for obtaining bidirectional ListIterator. Not fully tested!

Author:

Radek 'Black_Hand' Pibil

Field Summary

protected boolean	moved
protected boolean	passedBeginning
protected boolean	passedEnd

Constructor Summary

CircularListIterator(CircularListIterator<E> source)
Copy constructor for CircularListIterator.

CircularListIterator(List<E> toIterateOver)
Constructs an instance of an CircularListIterator.

CircularListIterator(List<E> toIterateOver, int index)
Constructs an instance of an CircularListIterator.

Method Summary

void	add(E e)
int	currentIndex()
protected Iterable<E>	getIterable()
protected Iterator<E>	getIterator()
boolean	hasNext()
boolean	hasPassedBeginning()
boolean	hasPassedEnd()
boolean	hasPrevious()
E	next()
int	nextIndex()
CircularListIterator<E>	nextIter()
E	previous()
int	previousIndex()
CircularListIterator<E>	previousIter()
void	remove()
protected void	restartIteratorBeginning()
protected void	restartIteratorEnd()
void	set(E e)

Methods inherited from class java.lang.Object

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

Field Detail

passedEnd

protected boolean passedEnd

passedBeginning

protected boolean passedBeginning

moved

protected boolean moved

Constructor Detail

CircularListIterator

public CircularListIterator(List<E> toIterateOver)

Constructs an instance of an CircularListIterator.

Parameters:

toIterateOver - List to be iterated over

CircularListIterator

public CircularListIterator(List<E> toIterateOver,
                            int index)

Constructs an instance of an CircularListIterator.

Parameters:

toIterateOver - List to be iterated over

index - an index to begin iteration at

CircularListIterator

public CircularListIterator(CircularListIterator<E> source)

Copy constructor for CircularListIterator.

Parameters:

source -

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<E>

Specified by:

hasNext in interface ListIterator<E>

next

public E next()

Specified by:

next in interface Iterator<E>

Specified by:

next in interface ListIterator<E>

remove

public void remove()

Specified by:

remove in interface Iterator<E>

Specified by:

remove in interface ListIterator<E>

hasPassedEnd

public boolean hasPassedEnd()

hasPassedBeginning

public boolean hasPassedBeginning()

getIterable

protected Iterable<E> getIterable()

getIterator

protected Iterator<E> getIterator()

restartIteratorBeginning

protected void restartIteratorBeginning()

restartIteratorEnd

protected void restartIteratorEnd()

add

public void add(E e)

Specified by:

add in interface ListIterator<E>

hasPrevious

public boolean hasPrevious()

Specified by:

hasPrevious in interface ListIterator<E>

nextIndex

public int nextIndex()

Specified by:

nextIndex in interface ListIterator<E>

previous

public E previous()

Specified by:

previous in interface ListIterator<E>

previousIndex

public int previousIndex()

Specified by:

previousIndex in interface ListIterator<E>

set

public void set(E e)

Specified by:

set in interface ListIterator<E>

currentIndex

public int currentIndex()

previousIter

public CircularListIterator<E> previousIter()

nextIter

public CircularListIterator<E> nextIter()