org.apache.commons.collections4.iterators

Class UnmodifiableListIterator<E>

java.lang.Object

org.apache.commons.collections4.iterators.UnmodifiableListIterator<E>

All Implemented Interfaces:

java.util.Iterator<E>, java.util.ListIterator<E>, Unmodifiable

public final class UnmodifiableListIterator<E>
extends java.lang.Object
implements java.util.ListIterator<E>, Unmodifiable

Decorates a list iterator such that it cannot be modified.

Attempts to modify it will result in an UnsupportedOperationException.

Since:

3.0

Method Summary

Modifier and Type	Method and Description
void	add(E obj)
boolean	hasNext()
boolean	hasPrevious()
E	next()
int	nextIndex()
E	previous()
int	previousIndex()
void	remove()
void	set(E obj)
static <E> java.util.ListIterator<E>	umodifiableListIterator(java.util.ListIterator<? extends E> iterator) Decorates the specified iterator such that it cannot be modified.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Method Detail

umodifiableListIterator

public static <E> java.util.ListIterator<E> umodifiableListIterator(java.util.ListIterator<? extends E> iterator)

Decorates the specified iterator such that it cannot be modified.

Type Parameters:

E - the element type

Parameters:

iterator - the iterator to decorate

Returns:

a new unmodifiable list iterator

Throws:

java.lang.NullPointerException - if the iterator is null

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<E>

Specified by:

hasNext in interface java.util.ListIterator<E>

next

public E next()

Specified by:

next in interface java.util.Iterator<E>

Specified by:

next in interface java.util.ListIterator<E>

nextIndex

public int nextIndex()

Specified by:

nextIndex in interface java.util.ListIterator<E>

hasPrevious

public boolean hasPrevious()

Specified by:

hasPrevious in interface java.util.ListIterator<E>

previous

public E previous()

Specified by:

previous in interface java.util.ListIterator<E>

previousIndex

public int previousIndex()

Specified by:

previousIndex in interface java.util.ListIterator<E>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<E>

Specified by:

remove in interface java.util.ListIterator<E>

set

public void set(E obj)

Specified by:

set in interface java.util.ListIterator<E>

add

public void add(E obj)

Specified by:

add in interface java.util.ListIterator<E>