Package com.globalmentor.collections.iterators

Class ConverterListIterator<I,O>

java.lang.Object

com.globalmentor.collections.iterators.ConverterIterator<I,O>

com.globalmentor.collections.iterators.ConverterListIterator<I,O>

Type Parameters:

I - The input type.

O - The output type.

All Implemented Interfaces:

Iterator<O>, ListIterator<O>

public class ConverterListIterator<I,O>
extends ConverterIterator<I,O>
implements ListIterator<O>

A list iterator that returns its objects converted using a Converter.

This implementation does not support adding or setting elements.

Author:

Garret Wilson

See Also:

• Converter

Constructor Summary

Constructors

Constructor	Description
ConverterListIterator(ListIterator<I> iterator, Converter<I,O> converter)	Iterator and converter constructor.

Method Summary

Modifier and Type	Method	Description
void	add(O e)
protected ListIterator<I>	getIterator()	This version returns the iterator as a ListIterator.
boolean	hasNext()
boolean	hasPrevious()
O	next()
int	nextIndex()
O	previous()
int	previousIndex()
void	set(O e)

Methods inherited from class com.globalmentor.collections.iterators.ConverterIterator

getConverter, remove

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Methods inherited from interface java.util.ListIterator

remove

Constructor Details

ConverterListIterator

public ConverterListIterator(ListIterator<I> iterator,
 Converter<I,O> converter)

Iterator and converter constructor.

Parameters:

iterator - The iterator of source objects.

converter - The conversor to be used on the iterable.

Throws:

NullPointerException - of if the given iterator and/or converter is null.

Method Details

getIterator

protected ListIterator<I> getIterator()

This version returns the iterator as a ListIterator.

Overrides:

getIterator in class ConverterIterator<I,O>

Returns:

The iterator this class decorates.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<I>

Specified by:

hasNext in interface ListIterator<I>

Overrides:

hasNext in class ConverterIterator<I,O>

next

public O next()

This implementation converts the next object before returning it.

This implementation converts the next object before returning it.

Specified by:

next in interface Iterator<I>

Specified by:

next in interface ListIterator<I>

Overrides:

next in class ConverterIterator<I,O>

See Also:

• Converter.convert(Object)

hasPrevious

public boolean hasPrevious()

Specified by:

hasPrevious in interface ListIterator<I>

previous

public O previous()

This implementation converts the previous object before returning it.

Specified by:

previous in interface ListIterator<I>

See Also:

• Converter.convert(Object)

nextIndex

public int nextIndex()

Specified by:

nextIndex in interface ListIterator<I>

previousIndex

public int previousIndex()

Specified by:

previousIndex in interface ListIterator<I>

set

public void set(O e)

This implementation throws an UnsupportedOperationException.

Specified by:

set in interface ListIterator<I>

add

public void add(O e)

This implementation throws an UnsupportedOperationException.

Specified by:

add in interface ListIterator<I>