org.apache.commons.collections.collection.UnmodifiableCollection

All Implemented Interfaces:: Serializable, Iterable, Collection, Unmodifiable

public final class UnmodifiableCollection extends AbstractSerializableCollectionDecorator implements Unmodifiable

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

This class is Serializable from Commons Collections 3.1.

Since:

Commons Collections 3.0

Version:

$Revision: 646777 $ $Date: 2008-04-10 14:33:15 +0200 (Thu, 10 Apr 2008) $

Author:

Stephen Colebourne

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator
collection
Method Summary

Modifier and Type

Method

Description

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)

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.Collection
parallelStream, removeIf, spliterator, stream, toArray

Methods inherited from interface java.lang.Iterable
forEach

Method Details
- decorate
  
  public static Collection decorate(Collection coll)
  
  Factory method to create an unmodifiable collection.
  If the collection passed in is already unmodifiable, it is returned.
  
  Parameters:
  
  coll - the collection to decorate, must not be null
  
  Returns:
  
  an unmodifiable collection
  
  Throws:
  
  IllegalArgumentException - if collection is null
- iterator
  
  public Iterator iterator()
  
  Specified by:
  
  iterator in interface Collection
  
  Specified by:
  
  iterator in interface Iterable
  
  Overrides:
  
  iterator in class AbstractCollectionDecorator
- add
  
  public boolean add(Object object)
  
  Specified by:
  
  add in interface Collection
  
  Overrides:
  
  add in class AbstractCollectionDecorator
- addAll
  
  public boolean addAll(Collection coll)
  
  Specified by:
  
  addAll in interface Collection
  
  Overrides:
  
  addAll in class AbstractCollectionDecorator
- clear
  
  public void clear()
  
  Specified by:
  
  clear in interface Collection
  
  Overrides:
  
  clear in class AbstractCollectionDecorator
- remove
  
  public boolean remove(Object object)
  
  Specified by:
  
  remove in interface Collection
  
  Overrides:
  
  remove in class AbstractCollectionDecorator
- removeAll
  
  public boolean removeAll(Collection coll)
  
  Specified by:
  
  removeAll in interface Collection
  
  Overrides:
  
  removeAll in class AbstractCollectionDecorator
- retainAll
  
  public boolean retainAll(Collection coll)
  
  Specified by:
  
  retainAll in interface Collection
  
  Overrides:
  
  retainAll in class AbstractCollectionDecorator

Class UnmodifiableCollection

Field Summary

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

Method Summary

Methods inherited from class org.apache.commons.collections.collection.AbstractCollectionDecorator

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Collection

Methods inherited from interface java.lang.Iterable

Method Details

decorate

iterator

add

addAll

clear

remove

removeAll

retainAll