com.liferay.portal.kernel.util
Class UnmodifiableList<E>

java.lang.Object
  extended by com.liferay.portal.kernel.util.UnmodifiableList<E>
All Implemented Interfaces:
java.io.Serializable, java.lang.Iterable<E>, java.util.Collection<E>, java.util.List<E>

public class UnmodifiableList<E>
extends java.lang.Object
implements java.util.List<E>, java.io.Serializable

View Source

This is a read-only wrapper around any java.util.List. Query operations will "read through" to the specified list. Attempts to modify the list directly or via its iterator will result in a java.lang.UnsupportedOperationException.

Author:
Alexander Chow
See Also:
Serialized Form

Constructor Summary
UnmodifiableList(java.util.List<? extends E> list)
           
 
Method Summary
 boolean add(E element)
           
 void add(int index, E element)
           
 boolean addAll(java.util.Collection<? extends E> collection)
           
 boolean addAll(int index, java.util.Collection<? extends E> collection)
           
 void clear()
           
 boolean contains(java.lang.Object object)
           
 boolean containsAll(java.util.Collection<?> collection)
           
 boolean equals(java.lang.Object object)
           
 E get(int index)
           
 int hashCode()
           
 int indexOf(java.lang.Object object)
           
 boolean isEmpty()
           
 java.util.Iterator<E> iterator()
           
 int lastIndexOf(java.lang.Object o)
           
 java.util.ListIterator<E> listIterator()
           
 java.util.ListIterator<E> listIterator(int index)
           
 E remove(int index)
           
 boolean remove(java.lang.Object object)
           
 boolean removeAll(java.util.Collection<?> collection)
           
 boolean retainAll(java.util.Collection<?> collection)
           
 E set(int index, E element)
           
 int size()
           
 java.util.List<E> subList(int fromIndex, int toIndex)
           
 java.lang.Object[] toArray()
           
<T> T[]
toArray(T[] a)
           
 java.lang.String toString()
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

UnmodifiableList

public UnmodifiableList(java.util.List<? extends E> list)
Method Detail

add

public boolean add(E element)
Specified by:
add in interface java.util.Collection<E>
Specified by:
add in interface java.util.List<E>

add

public void add(int index,
                E element)
Specified by:
add in interface java.util.List<E>

addAll

public boolean addAll(java.util.Collection<? extends E> collection)
Specified by:
addAll in interface java.util.Collection<E>
Specified by:
addAll in interface java.util.List<E>

addAll

public boolean addAll(int index,
                      java.util.Collection<? extends E> collection)
Specified by:
addAll in interface java.util.List<E>

clear

public void clear()
Specified by:
clear in interface java.util.Collection<E>
Specified by:
clear in interface java.util.List<E>

contains

public boolean contains(java.lang.Object object)
Specified by:
contains in interface java.util.Collection<E>
Specified by:
contains in interface java.util.List<E>

containsAll

public boolean containsAll(java.util.Collection<?> collection)
Specified by:
containsAll in interface java.util.Collection<E>
Specified by:
containsAll in interface java.util.List<E>

equals

public boolean equals(java.lang.Object object)
Specified by:
equals in interface java.util.Collection<E>
Specified by:
equals in interface java.util.List<E>
Overrides:
equals in class java.lang.Object

get

public E get(int index)
Specified by:
get in interface java.util.List<E>

hashCode

public int hashCode()
Specified by:
hashCode in interface java.util.Collection<E>
Specified by:
hashCode in interface java.util.List<E>
Overrides:
hashCode in class java.lang.Object

indexOf

public int indexOf(java.lang.Object object)
Specified by:
indexOf in interface java.util.List<E>

isEmpty

public boolean isEmpty()
Specified by:
isEmpty in interface java.util.Collection<E>
Specified by:
isEmpty in interface java.util.List<E>

iterator

public java.util.Iterator<E> iterator()
Specified by:
iterator in interface java.lang.Iterable<E>
Specified by:
iterator in interface java.util.Collection<E>
Specified by:
iterator in interface java.util.List<E>

lastIndexOf

public int lastIndexOf(java.lang.Object o)
Specified by:
lastIndexOf in interface java.util.List<E>

listIterator

public java.util.ListIterator<E> listIterator()
Specified by:
listIterator in interface java.util.List<E>

listIterator

public java.util.ListIterator<E> listIterator(int index)
Specified by:
listIterator in interface java.util.List<E>

remove

public E remove(int index)
Specified by:
remove in interface java.util.List<E>

remove

public boolean remove(java.lang.Object object)
Specified by:
remove in interface java.util.Collection<E>
Specified by:
remove in interface java.util.List<E>

removeAll

public boolean removeAll(java.util.Collection<?> collection)
Specified by:
removeAll in interface java.util.Collection<E>
Specified by:
removeAll in interface java.util.List<E>

retainAll

public boolean retainAll(java.util.Collection<?> collection)
Specified by:
retainAll in interface java.util.Collection<E>
Specified by:
retainAll in interface java.util.List<E>

set

public E set(int index,
             E element)
Specified by:
set in interface java.util.List<E>

size

public int size()
Specified by:
size in interface java.util.Collection<E>
Specified by:
size in interface java.util.List<E>

subList

public java.util.List<E> subList(int fromIndex,
                                 int toIndex)
Specified by:
subList in interface java.util.List<E>

toArray

public java.lang.Object[] toArray()
Specified by:
toArray in interface java.util.Collection<E>
Specified by:
toArray in interface java.util.List<E>

toArray

public <T> T[] toArray(T[] a)
Specified by:
toArray in interface java.util.Collection<E>
Specified by:
toArray in interface java.util.List<E>

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object