Module org.hsqldb

Package org.hsqldb.lib

Class OrderedHashSet<E>

java.lang.Object

org.hsqldb.map.BaseHashMap

org.hsqldb.lib.HashSet<E>

org.hsqldb.lib.OrderedHashSet<E>

All Implemented Interfaces:

Collection<E>, List<E>, Set<E>

public class OrderedHashSet<E>
extends HashSet<E>
implements List<E>, Set<E>

A list which is also a Set which maintains the inserted order of elements and allows access by index. Iterators return the elements in the index order.

This class does not store null elements.

Since:

1.9.0

Author:

Fred Toussi (fredt@users dot sourceforge.net)

Field Summary

Fields inherited from class org.hsqldb.map.BaseHashMap

ACCESS_MAX, emptyObjectArray

Constructor Summary

Constructors

Constructor	Description
OrderedHashSet()
OrderedHashSet(int initialCapacity)
OrderedHashSet(int initialCapacity, ObjectComparator<E> comparator)
OrderedHashSet(Object[] valueList)

Method Summary

Modifier and Type	Method	Description
void	add(int index, E key)
static <E> OrderedHashSet<E>	add(OrderedHashSet<E> first, E value)
static <E> OrderedHashSet<E>	addAll(OrderedHashSet<E> first, OrderedHashSet<E> second)
E	get(int index)
int	getCommonElementCount(Set<E> other)
int	getIndex(Object key)
int	getLargestIndex(OrderedHashSet<E> other)
int	getSmallestIndex(OrderedHashSet<E> other)
int	indexOf(Object key)
boolean	insert(int index, E key)
int	lastIndexOf(Object o)
E	remove(int index)
boolean	remove(Object key)	returns true if removed
void	removeEntry(int index)
E	set(int index, E key)
Object[]	toArray()
<T> T[]	toArray(T[] array)

Methods inherited from class org.hsqldb.lib.HashSet

add, addAll, addAll, addAll, contains, containsAll, get, getOrAdd, iterator, removeAll, removeAll, retainAll, toString

Methods inherited from class org.hsqldb.map.BaseHashMap

clear, clone, isEmpty, size

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.hsqldb.lib.Collection

addAll, clear, contains

Methods inherited from interface org.hsqldb.lib.List

add, isEmpty, iterator, size

Constructor Details

OrderedHashSet

public OrderedHashSet()

OrderedHashSet

public OrderedHashSet(int initialCapacity)

OrderedHashSet

public OrderedHashSet(int initialCapacity,
 ObjectComparator<E> comparator)

OrderedHashSet

public OrderedHashSet(Object[] valueList)

Method Details

remove

public boolean remove(Object key)

Description copied from class: HashSet

returns true if removed

Specified by:

remove in interface Collection<E>

Overrides:

remove in class HashSet<E>

Parameters:

key - Object to remove

Returns:

true if removed

remove

public E remove(int index)

Specified by:

remove in interface List<E>

removeEntry

public void removeEntry(int index)
                 throws IndexOutOfBoundsException

Throws:

IndexOutOfBoundsException

insert

public boolean insert(int index,
 E key)
               throws IndexOutOfBoundsException

Throws:

IndexOutOfBoundsException

set

public E set(int index,
 E key)

Specified by:

set in interface List<E>

add

public void add(int index,
 E key)

Specified by:

add in interface List<E>

get

public E get(int index)

Specified by:

get in interface List<E>

toArray

public Object[] toArray()

Overrides:

toArray in class HashSet<E>

toArray

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

Overrides:

toArray in class HashSet<E>

indexOf

public int indexOf(Object key)

getIndex

public int getIndex(Object key)

lastIndexOf

public int lastIndexOf(Object o)

getLargestIndex

public int getLargestIndex(OrderedHashSet<E> other)

getSmallestIndex

public int getSmallestIndex(OrderedHashSet<E> other)

getCommonElementCount

public int getCommonElementCount(Set<E> other)

Overrides:

getCommonElementCount in class HashSet<E>

addAll

public static <E> OrderedHashSet<E> addAll(OrderedHashSet<E> first,
 OrderedHashSet<E> second)

add

public static <E> OrderedHashSet<E> add(OrderedHashSet<E> first,
 E value)