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

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

Type Parameters:

E - element type

All Implemented Interfaces:

java.lang.Iterable<E>, java.util.Collection<E>, java.util.List<E>

public class DistinctResultList<E>
extends java.lang.Object
implements java.util.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(java.util.Collection<? extends E> c)
boolean	addAll(int index, java.util.Collection<? extends E> c)
void	clear()
boolean	contains(java.lang.Object o)
boolean	containsAll(java.util.Collection<?> c)
E	get(int index)
int	indexOf(java.lang.Object o)
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 o)
boolean	removeAll(java.util.Collection<?> c)
boolean	retainAll(java.util.Collection<?> c)
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)
protected java.lang.RuntimeException	translate(java.lang.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 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> c)

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> c)

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 o)

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<?> c)

Specified by:

containsAll in interface java.util.Collection<E>

Specified by:

containsAll in interface java.util.List<E>

get

public E get(int index)

Specified by:

get in interface java.util.List<E>

indexOf

public int indexOf(java.lang.Object o)

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 boolean remove(java.lang.Object o)

Specified by:

remove in interface java.util.Collection<E>

Specified by:

remove in interface java.util.List<E>

remove

public E remove(int index)

Specified by:

remove in interface java.util.List<E>

removeAll

public boolean removeAll(java.util.Collection<?> c)

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<?> c)

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>

translate

protected java.lang.RuntimeException translate(java.lang.RuntimeException re)