AbstractIterator (Net4j Utilities Documentation)

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Summary:
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Field |
Constr |
Method

Detail:
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java.lang.Object
- org.eclipse.net4j.util.collection.AbstractIterator<T>

All Implemented Interfaces:

Iterator<T>

Direct Known Subclasses:

AbstractFilteredIterator, AbstractListIterator, ComposedIterator
```
public abstract class AbstractIterator<T>
extends Object
implements Iterator<T>
```
An abstract base class for custom iterators that only requires to implement a single computeNextElement() method.

Since:

3.2

Field Summary

Fields
Modifier and Type Field and Description

protected static Object END_OF_DATA
The token to be used in computeNextElement() to indicate the end of the iteration.

Constructor Summary

Constructors
Constructor and Description

AbstractIterator()

Method Summary

Methods
Modifier and Type	Method and Description
`protected abstract Object`	`computeNextElement()` Returns the next iteration element, or `END_OF_DATA` if the end of the iteration has been reached.
`static <T> ListIterator<T>`	`empty()`
`boolean`	`hasNext()`
`T`	`next()`
`void`	`remove()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - END_OF_DATA
```
protected static final Object END_OF_DATA
```
    The token to be used in computeNextElement() to indicate the end of the iteration.
- Constructor Detail
  - AbstractIterator
```
public AbstractIterator()
```
- Method Detail
  - hasNext
```
public final boolean hasNext()
```
    Specified by:
    
    hasNext in interface Iterator<T>
  - next
```
public final T next()
```
    Specified by:
    
    next in interface Iterator<T>
  - remove
```
public void remove()
```
    Specified by:
    
    remove in interface Iterator<T>
  - computeNextElement
```
protected abstract Object computeNextElement()
```
    Returns the next iteration element, or END_OF_DATA if the end of the iteration has been reached.
  - empty
```
public static <T> ListIterator<T> empty()
```
    Since:
    
    3.4

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Copyright (c) 2011-2014 Eike Stepper (Berlin, Germany) and others.