org.apache.openjpa.kernel
Class DistinctResultList<E>

java.lang.Object
  org.apache.openjpa.kernel.DistinctResultList<E>

Type Parameters:

E - element type

All Implemented Interfaces:

Iterable<E>, Collection<E>, List<E>

public class DistinctResultList<E>
extends Object
implements List<E>

An immutable list that imposes uniqueness on its member. This implementation traverses the entire result list on construction. So it is not suitable or efficient for large results. All mutation operations (except clear()) throw UnsupportedOperationException.

Since:

2.0.0

Author:

Pinaki Poddar

Constructor Summary

DistinctResultList(ResultList<E> list, RuntimeExceptionTranslator trans)

Method Summary

boolean	add(E o)
void	add(int index, E element)
boolean	addAll(Collection<? extends E> c)
boolean	addAll(int index, Collection<? extends E> c)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
E	get(int index)
int	indexOf(Object o)
boolean	isEmpty()
Iterator<E>	iterator()
int	lastIndexOf(Object o)
ListIterator<E>	listIterator()
ListIterator<E>	listIterator(int index)
E	remove(int index)
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
E	set(int index, E element)
int	size()
List<E>	subList(int fromIndex, int toIndex)
Object[]	toArray()
<T> T[]	toArray(T[] a)
protected RuntimeException	translate(RuntimeException re)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.List

equals, hashCode

Constructor Detail

DistinctResultList

public DistinctResultList(ResultList<E> list,
                          RuntimeExceptionTranslator trans)

Method Detail

add

public boolean add(E o)

Specified by:

add in interface Collection<E>

Specified by:

add in interface List<E>

add

public void add(int index,
                E element)

Specified by:

add in interface List<E>

addAll

public boolean addAll(Collection<? extends E> c)

Specified by:

addAll in interface Collection<E>

Specified by:

addAll in interface List<E>

addAll

public boolean addAll(int index,
                      Collection<? extends E> c)

Specified by:

addAll in interface List<E>

clear

public void clear()

Specified by:

clear in interface Collection<E>

Specified by:

clear in interface List<E>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<E>

Specified by:

contains in interface List<E>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<E>

Specified by:

containsAll in interface List<E>

get

public E get(int index)

Specified by:

get in interface List<E>

indexOf

public int indexOf(Object o)

Specified by:

indexOf in interface List<E>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<E>

Specified by:

isEmpty in interface List<E>

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface List<E>

lastIndexOf

public int lastIndexOf(Object o)

Specified by:

lastIndexOf in interface List<E>

listIterator

public ListIterator<E> listIterator()

Specified by:

listIterator in interface List<E>

listIterator

public ListIterator<E> listIterator(int index)

Specified by:

listIterator in interface List<E>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<E>

Specified by:

remove in interface List<E>

remove

public E remove(int index)

Specified by:

remove in interface List<E>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<E>

Specified by:

removeAll in interface List<E>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<E>

Specified by:

retainAll in interface List<E>

set

public E set(int index,
             E element)

Specified by:

set in interface List<E>

size

public int size()

Specified by:

size in interface Collection<E>

Specified by:

size in interface List<E>

subList

public List<E> subList(int fromIndex,
                       int toIndex)

Specified by:

subList in interface List<E>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<E>

Specified by:

toArray in interface List<E>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<E>

Specified by:

toArray in interface List<E>

translate

protected RuntimeException translate(RuntimeException re)