UnmodifiableCollection

extends AbstractSerializableCollectionDecorator
implements Unmodifiable

java.lang.Object
↳	org.apache.commons.collections.collection.AbstractCollectionDecorator
	↳	org.apache.commons.collections.collection.AbstractSerializableCollectionDecorator
		↳	org.apache.commons.collections.collection.UnmodifiableCollection

Class Overview

Decorates another Collection to ensure it can't be altered.

This class is Serializable from Commons Collections 3.1.

Inherited Fields

Public Methods
boolean	add(Object object)
boolean	addAll(Collection coll)
void	clear()
static Collection	decorate(Collection coll) Factory method to create an unmodifiable collection.
Iterator	iterator()
boolean	remove(Object object)
boolean	removeAll(Collection coll)
boolean	retainAll(Collection coll)

Inherited Methods

From class java.lang.Object

From interface java.lang.Iterable

From interface java.util.Collection

abstract boolean	add(E arg0)
abstract boolean	addAll(Collection<? extends E> arg0)
abstract void	clear()
abstract boolean	contains(Object arg0)
abstract boolean	containsAll(Collection<?> arg0)
abstract boolean	equals(Object arg0)
abstract int	hashCode()
abstract boolean	isEmpty()
abstract Iterator<E>	iterator()
abstract boolean	remove(Object arg0)
abstract boolean	removeAll(Collection<?> arg0)
abstract boolean	retainAll(Collection<?> arg0)
abstract int	size()
abstract <T> T[]	toArray(T[] arg0)
abstract Object[]	toArray()

Factory method to create an unmodifiable collection.

If the collection passed in is already unmodifiable, it is returned.

coll	the collection to decorate, must not be null

IllegalArgumentException	if collection is null