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## org.apache.commons.collections.list
Class UnmodifiableList

    java.lang.Object
      |
      +--org.apache.commons.collections.collection.AbstractCollectionDecorator
            |
            +--org.apache.commons.collections.list.AbstractListDecorator
                  |
                  +--org.apache.commons.collections.list.AbstractSerializableListDecorator
                        |
                        +--org.apache.commons.collections.list.UnmodifiableList

All Implemented Interfaces:
  Collection, List, Serializable, Unmodifiable

public final class UnmodifiableList
extends AbstractSerializableListDecorator
implements Unmodifiable

Decorates another `List` to ensure it can't be altered.

This class is Serializable from Commons Collections 3.1.

Since:
  Commons Collections 3.0
Version:
  $Revision: 1.7 $ $Date: 2004/06/03 22:02:13 $
Author:
  Stephen Colebourne
See Also:
  Serialized Form

Field Summary

Fields inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
`collection`

Method Summary
`void` | `add(int index, Object object)`
`boolean` | `add(Object object)`
`boolean` | `addAll(Collection coll)`
`boolean` | `addAll(int index, Collection coll)`
`void` | `clear()`
`static List` | `decorate(List list)` Factory method to create an unmodifiable list.
`Iterator` | `iterator()`
`ListIterator` | `listIterator()`
`ListIterator` | `listIterator(int index)`
`Object` | `remove(int index)`
`boolean` | `remove(Object object)`
`boolean` | `removeAll(Collection coll)`
`boolean` | `retainAll(Collection coll)`
`Object` | `set(int index, Object object)`
`List` | `subList(int fromIndex, int toIndex)`

Methods inherited from class org.apache.commons.collections.list.AbstractListDecorator
`get, getList, indexOf, lastIndexOf`

Methods inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
`contains, containsAll, equals, getCollection, hashCode, isEmpty, size, toArray, toArray, toString`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Methods inherited from interface java.util.List
`contains, containsAll, equals, hashCode, isEmpty, size, toArray, toArray`

Method Detail

### decorate

    public static List decorate(List list)

  Factory method to create an unmodifiable list.

  Parameters:
    `list` - the list to decorate, must not be null
  Throws:
    `IllegalArgumentException` - if list is null

### iterator

    public Iterator iterator()

  Specified by:
    `iterator` in interface `List`
  Overrides:
    `iterator` in class `AbstractCollectionDecorator`

### add

    public boolean add(Object object)

  Specified by:
    `add` in interface `List`
  Overrides:
    `add` in class `AbstractCollectionDecorator`

### addAll

    public boolean addAll(Collection coll)

  Specified by:
    `addAll` in interface `List`
  Overrides:
    `addAll` in class `AbstractCollectionDecorator`

### clear

    public void clear()

  Specified by:
    `clear` in interface `List`
  Overrides:
    `clear` in class `AbstractCollectionDecorator`

### remove

    public boolean remove(Object object)

  Specified by:
    `remove` in interface `List`
  Overrides:
    `remove` in class `AbstractCollectionDecorator`

### removeAll

    public boolean removeAll(Collection coll)

  Specified by:
    `removeAll` in interface `List`
  Overrides:
    `removeAll` in class `AbstractCollectionDecorator`

### retainAll

    public boolean retainAll(Collection coll)

  Specified by:
    `retainAll` in interface `List`
  Overrides:
    `retainAll` in class `AbstractCollectionDecorator`

### listIterator

    public ListIterator listIterator()

  Specified by:
    `listIterator` in interface `List`
  Overrides:
    `listIterator` in class `AbstractListDecorator`

### listIterator

    public ListIterator listIterator(int index)

  Specified by:
    `listIterator` in interface `List`
  Overrides:
    `listIterator` in class `AbstractListDecorator`

### add

    public void add(int index,
                    Object object)

  Specified by:
    `add` in interface `List`
  Overrides:
    `add` in class `AbstractListDecorator`

### addAll

    public boolean addAll(int index,
                          Collection coll)

  Specified by:
    `addAll` in interface `List`
  Overrides:
    `addAll` in class `AbstractListDecorator`

### remove

    public Object remove(int index)

  Specified by:
    `remove` in interface `List`
  Overrides:
    `remove` in class `AbstractListDecorator`

### set

    public Object set(int index,
                      Object object)

  Specified by:
    `set` in interface `List`
  Overrides:
    `set` in class `AbstractListDecorator`

### subList

    public List subList(int fromIndex,
                        int toIndex)

  Specified by:
    `subList` in interface `List`
  Overrides:
    `subList` in class `AbstractListDecorator`

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