ForwardingIterator

com.google.common.collect

Class ForwardingIterator<T>

java.lang.Object
- com.google.common.collect.ForwardingObject
- - com.google.common.collect.ForwardingIterator<T>

All Implemented Interfaces:

Iterator<T>

Direct Known Subclasses:

ForwardingListIterator
```
@GwtCompatible
public abstract class ForwardingIterator<T>
extends ForwardingObject
implements 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

Constructor Summary

Constructors

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

Method Summary

All Methods

Instance Methods

Abstract Methods

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

- Constructor Detail
  - ForwardingIterator
```
protected ForwardingIterator()
```
    Constructor for use by subclasses.
- Method Detail
  - delegate
```
protected abstract 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.
  - hasNext
```
public boolean hasNext()
```
  - next
```
public T next()
```
  - remove
```
public void remove()
```