com.liferay.portal.kernel.util

Class UnmodifiableList<E>

java.lang.Object

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

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

Constructors

Constructor and Description
UnmodifiableList(java.util.List<? extends E> list)

Method Summary

Methods

Modifier and Type	Method and Description
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