org.norther.tammi.acorn.util
Class UnmodifiableCollection<E>

java.lang.Object
  org.norther.tammi.acorn.util.UnmodifiableCollection<E>

Type Parameters:

E - the element type.

All Implemented Interfaces:

Serializable, Cloneable, Iterable<E>, Collection<E>

Direct Known Subclasses:

CounterCollection, ModifiableCollection, UnmodifiableList, UnmodifiableSet

public class UnmodifiableCollection<E>
extends Object
implements Collection<E>, Cloneable, Serializable

An unmodifiable collection wrapper filtering out additions and removals.

Version:

$Id: UnmodifiableCollection.java,v 1.13 2009/10/29 21:44:08 cvsimp Exp $

Author:

Ilkka Priha

See Also:

Serialized Form

Constructor Summary

UnmodifiableCollection()
Constructs an empty collection.

UnmodifiableCollection(Collection<? extends E> c)
Constructs a new collection.

Method Summary

boolean	add(E o)
boolean	addAll(Collection<? extends E> c)
void	clear()
Object	clone()
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
boolean	equals(Object o)
protected Collection<E>	getCollection() Gets the collection adaptee.
int	hashCode()
boolean	isEmpty()
Iterator<E>	iterator()
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
protected void	setCollection(Collection<E> c) Sets the collection adaptee.
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] a)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

UnmodifiableCollection

public UnmodifiableCollection()

Constructs an empty collection.

UnmodifiableCollection

public UnmodifiableCollection(Collection<? extends E> c)

Constructs a new collection.

Parameters:

c - a collection to wrap.

Method Detail

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<E>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Collection<E>

Overrides:

hashCode in class Object

clone

public Object clone()

Overrides:

clone in class Object

add

public boolean add(E o)

Specified by:

add in interface Collection<E>

addAll

public boolean addAll(Collection<? extends E> c)

Specified by:

addAll in interface Collection<E>

clear

public void clear()

Specified by:

clear in interface Collection<E>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<E>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<E>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<E>

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Collection<E>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<E>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<E>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<E>

size

public int size()

Specified by:

size in interface Collection<E>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<E>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<E>

toString

public String toString()

Overrides:

toString in class Object

getCollection

protected Collection<E> getCollection()

Gets the collection adaptee.

Returns:

the wrapped collection.

setCollection

protected void setCollection(Collection<E> c)

Sets the collection adaptee.

Parameters:

c - the wrapped collection.