com.google.common.collect

Class AbstractIndexedListIterator<E>

java.lang.Object

com.google.common.collect.UnmodifiableIterator<E>

com.google.common.collect.UnmodifiableListIterator<E>

com.google.common.collect.AbstractIndexedListIterator<E>

All Implemented Interfaces:

java.util.Iterator<E>, java.util.ListIterator<E>

@GwtCompatible
abstract class AbstractIndexedListIterator<E>
extends UnmodifiableListIterator<E>

This class provides a skeletal implementation of the ListIterator interface across a fixed number of elements that may be retrieved by position. It does not support UnmodifiableIterator.remove(), UnmodifiableListIterator.set(E), or UnmodifiableListIterator.add(E).

Field Summary

Fields

Modifier and Type	Field and Description
private int	position
private int	size

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractIndexedListIterator(int size) Constructs an iterator across a sequence of the given size whose initial position is 0.
protected	AbstractIndexedListIterator(int size, int position) Constructs an iterator across a sequence of the given size with the given initial position.

Method Summary

Modifier and Type	Method and Description
protected abstract E	get(int index) Returns the element with the specified index.
boolean	hasNext()
boolean	hasPrevious()
E	next()
int	nextIndex()
E	previous()
int	previousIndex()

Methods inherited from class com.google.common.collect.UnmodifiableListIterator

add, set

Methods inherited from class com.google.common.collect.UnmodifiableIterator

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.ListIterator

remove

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Detail

size

private final int size

position

private int position

Constructor Detail

AbstractIndexedListIterator

protected AbstractIndexedListIterator(int size)

Constructs an iterator across a sequence of the given size whose initial position is 0. That is, the first call to next() will return the first element (or throw NoSuchElementException if size is zero).

Throws:

java.lang.IllegalArgumentException - if size is negative

AbstractIndexedListIterator

protected AbstractIndexedListIterator(int size,
                                      int position)

Constructs an iterator across a sequence of the given size with the given initial position. That is, the first call to nextIndex() will return position, and the first call to next() will return the element at that index, if available. Calls to previous() can retrieve the preceding position elements.

Throws:

java.lang.IndexOutOfBoundsException - if position is negative or is greater than size

java.lang.IllegalArgumentException - if size is negative

Method Detail

get

protected abstract E get(int index)

Returns the element with the specified index. This method is called by next().

hasNext

public final boolean hasNext()

next

public final E next()

nextIndex

public final int nextIndex()

hasPrevious

public final boolean hasPrevious()

previous

public final E previous()

previousIndex

public final int previousIndex()