com.google.common.collect
Class ForwardingListIterator<E>

java.lang.Object
  extended by com.google.common.collect.ForwardingObject
      extended by com.google.common.collect.ForwardingIterator<E>
          extended by com.google.common.collect.ForwardingListIterator<E>
All Implemented Interfaces:
Iterator<E>, ListIterator<E>

@GwtCompatible
public abstract class ForwardingListIterator<E>
extends ForwardingIterator<E>
implements ListIterator<E>

A list iterator which forwards all its method calls to another list iterator. Subclasses should override one or more methods to modify the behavior of the backing iterator as desired per the decorator pattern.

Since:
2.0 (imported from Google Collections Library)
Author:
Mike Bostock

Constructor Summary
protected ForwardingListIterator()
          Constructor for use by subclasses.
 
Method Summary
 void add(E element)
           
protected abstract  ListIterator<E> delegate()
          Returns the backing delegate instance that methods are forwarded to.
 boolean hasPrevious()
           
 int nextIndex()
           
 E previous()
           
 int previousIndex()
           
 void set(E element)
           
 
Methods inherited from class com.google.common.collect.ForwardingIterator
hasNext, next, remove
 
Methods inherited from class com.google.common.collect.ForwardingObject
toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface java.util.ListIterator
hasNext, next, remove
 

Constructor Detail

ForwardingListIterator

protected ForwardingListIterator()
Constructor for use by subclasses.

Method Detail

delegate

protected abstract ListIterator<E> delegate()
Description copied from class: ForwardingObject
Returns the backing delegate instance that methods are forwarded to. Abstract subclasses generally override this method with an abstract method that has a more specific return type, such as ForwardingSet.delegate(). Concrete subclasses override this method to supply the instance being decorated.

Specified by:
delegate in class ForwardingIterator<E>

add

public void add(E element)
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 element)
Specified by:
set in interface ListIterator<E>


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