net.tribe7.common.collect

Class ForwardingIterator<T>

java.lang.Object

net.tribe7.common.collect.ForwardingObject

net.tribe7.common.collect.ForwardingIterator<T>

All Implemented Interfaces:

java.util.Iterator<T>

Direct Known Subclasses:

ForwardingListIterator

@GwtCompatible
public abstract class ForwardingIterator<T>
extends ForwardingObject
implements java.util.Iterator<T>

An iterator which forwards all its method calls to another 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)

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ForwardingIterator() Constructor for use by subclasses.

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract java.util.Iterator<T>	delegate() Returns the backing delegate instance that methods are forwarded to.
boolean	hasNext()
T	next()
void	remove()

Methods inherited from class net.tribe7.common.collect.ForwardingObject

toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ForwardingIterator

protected ForwardingIterator()

Constructor for use by subclasses.

Method Detail

delegate

protected abstract java.util.Iterator<T> 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 ForwardingObject

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<T>

next

public T next()

Specified by:

next in interface java.util.Iterator<T>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<T>