org.norther.tammi.acorn.util
Class WeakArrayList

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList
          org.norther.tammi.acorn.util.WeakArrayList

All Implemented Interfaces:

Iterable, Collection, List

public class WeakArrayList
extends AbstractList
implements List

A variation of ArrayAsList storing internally its elements as weak references.

Author:

Ilkka Priha

Nested Class Summary

protected static class

WeakArrayList.ReferenceIterator An inner class for iterators.

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

WeakArrayList()
Constructs an empty collection.

WeakArrayList(Collection c)
Constructs a new collection.

Method Summary

void	add(int index, Object item)
boolean	add(Object item)
boolean	addAll(Collection c)
boolean	addAll(int index, Collection c)
void	clear()
boolean	contains(Object item)
boolean	containsAll(Collection c)
boolean	equals(Object o)
Object	get(int index)
protected ArrayAsList	getArrayAsList() Gets the list adaptee.
int	hashCode()
int	indexOf(Object item)
protected static int	indexOf(Object item, WeakReference[] array, int offset, int n) A static index method without synchronization.
Iterator	iterator()
int	lastIndexOf(Object item)
ListIterator	listIterator()
ListIterator	listIterator(int index)
Object	remove(int index)
boolean	remove(Object item)
boolean	removeAll(Collection c)
boolean	retainAll(Collection c)
Object	set(int index, Object item)
int	size()
Object[]	toArray()
Object[]	toArray(Object[] a)

Methods inherited from class java.util.AbstractList

removeRange, subList

Methods inherited from class java.util.AbstractCollection

isEmpty, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

isEmpty, subList

Constructor Detail

WeakArrayList

public WeakArrayList()

Constructs an empty collection.

WeakArrayList

public WeakArrayList(Collection c)

Constructs a new collection.

Parameters:

c - a collection to wrap.

Method Detail

indexOf

protected static int indexOf(Object item,
                             WeakReference[] array,
                             int offset,
                             int n)

A static index method without synchronization.

Parameters:

item - the item to search.

array - the array of items.

offset - the start index.

n - the number of items to iterate.

Returns:

the index of the found item or -1.

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection

Specified by:

equals in interface List

Overrides:

equals in class AbstractList

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection

Specified by:

hashCode in interface List

Overrides:

hashCode in class AbstractList

size

public int size()

Specified by:

size in interface Collection

Specified by:

size in interface List

Specified by:

size in class AbstractCollection

contains

public boolean contains(Object item)

Specified by:

contains in interface Collection

Specified by:

contains in interface List

Overrides:

contains in class AbstractCollection

containsAll

public boolean containsAll(Collection c)

Specified by:

containsAll in interface Collection

Specified by:

containsAll in interface List

Overrides:

containsAll in class AbstractCollection

indexOf

public int indexOf(Object item)

Specified by:

indexOf in interface List

Overrides:

indexOf in class AbstractList

lastIndexOf

public int lastIndexOf(Object item)

Specified by:

lastIndexOf in interface List

Overrides:

lastIndexOf in class AbstractList

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection

Specified by:

toArray in interface List

Overrides:

toArray in class AbstractCollection

toArray

public Object[] toArray(Object[] a)

Specified by:

toArray in interface Collection

Specified by:

toArray in interface List

Overrides:

toArray in class AbstractCollection

get

public Object get(int index)

Specified by:

get in interface List

Specified by:

get in class AbstractList

set

public Object set(int index,
                  Object item)

Specified by:

set in interface List

Overrides:

set in class AbstractList

add

public boolean add(Object item)

Specified by:

add in interface Collection

Specified by:

add in interface List

Overrides:

add in class AbstractList

add

public void add(int index,
                Object item)

Specified by:

add in interface List

Overrides:

add in class AbstractList

remove

public Object remove(int index)

Specified by:

remove in interface List

Overrides:

remove in class AbstractList

remove

public boolean remove(Object item)

Specified by:

remove in interface Collection

Specified by:

remove in interface List

Overrides:

remove in class AbstractCollection

clear

public void clear()

Specified by:

clear in interface Collection

Specified by:

clear in interface List

Overrides:

clear in class AbstractList

addAll

public boolean addAll(Collection c)

Specified by:

addAll in interface Collection

Specified by:

addAll in interface List

Overrides:

addAll in class AbstractCollection

addAll

public boolean addAll(int index,
                      Collection c)

Specified by:

addAll in interface List

Overrides:

addAll in class AbstractList

removeAll

public boolean removeAll(Collection c)

Specified by:

removeAll in interface Collection

Specified by:

removeAll in interface List

Overrides:

removeAll in class AbstractCollection

retainAll

public boolean retainAll(Collection c)

Specified by:

retainAll in interface Collection

Specified by:

retainAll in interface List

Overrides:

retainAll in class AbstractCollection

iterator

public Iterator iterator()

Specified by:

iterator in interface Iterable

Specified by:

iterator in interface Collection

Specified by:

iterator in interface List

Overrides:

iterator in class AbstractList

listIterator

public ListIterator listIterator()

Specified by:

listIterator in interface List

Overrides:

listIterator in class AbstractList

listIterator

public ListIterator listIterator(int index)

Specified by:

listIterator in interface List

Overrides:

listIterator in class AbstractList

getArrayAsList

protected ArrayAsList getArrayAsList()

Gets the list adaptee.

Returns:

the wrapped list.