com.compoze.collab.util
Class ArraySet

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractSet
          com.compoze.collab.util.ArraySet

All Implemented Interfaces

Iterable, Collection, Set

public class ArraySet
extends AbstractSet

A Set implementation backed by an ArrayMap. This class does not permit the null element. Note that this class is only appropriate for holding very small sets, as most operations are quadratic time.

Constructor Summary

ArraySet()
Constructs an ArraySet with the default initial capacity (5).

ArraySet(Collection c)
Constructs an ArraySet containing the elements of a collection.

ArraySet(int iInitialCapacity)
Constructs an ArraySet with the specified initial capacity.

Method Summary

boolean	add(Object o) Adds the specified element to this set if it is not already present.
void	clear() Remove all the elements from this set
boolean	contains(Object o) Returns true if this set contains the specified element.
boolean	isEmpty() Returns true if this set contains no elements.
Iterator	iterator() Returns an iterator over the elements in this set.
boolean	remove(Object o) Removes the given element from this set if it is present.
int	size() Returns the number of elements in this set.

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

addAll, containsAll, retainAll, toArray, toArray

Constructor Detail

ArraySet

public ArraySet()

Constructs an ArraySet with the default initial capacity (5).

ArraySet

public ArraySet(Collection c)

Constructs an ArraySet containing the elements of a collection.

Parameters

c - the collection whose elements are to be placed into this set.

ArraySet

public ArraySet(int iInitialCapacity)

Constructs an ArraySet with the specified initial capacity.

Parameters

iInitialCapacity - the initial capacity

Method Detail

iterator

public Iterator iterator()

Returns an iterator over the elements in this set. The elements are returned in no particular order.

Specified by:

iterator in interface Iterable

Specified by:

iterator in interface Collection

Specified by:

iterator in interface Set

Specified by:

iterator in class AbstractCollection

See Also

Collection.iterator()

size

public int size()

Returns the number of elements in this set.

Specified by:

size in interface Collection

Specified by:

size in interface Set

Specified by:

size in class AbstractCollection

See Also

Collection.size()

isEmpty

public boolean isEmpty()

Returns true if this set contains no elements.

Specified by:

isEmpty in interface Collection

Specified by:

isEmpty in interface Set

Overrides:

isEmpty in class AbstractCollection

See Also

Collection.isEmpty()

contains

public boolean contains(Object o)

Returns true if this set contains the specified element.

Specified by:

contains in interface Collection

Specified by:

contains in interface Set

Overrides:

contains in class AbstractCollection

Parameters

o - element to be tested for membership

Returns

true if this set contains the specified element.

See Also

Collection.contains(java.lang.Object)

add

public boolean add(Object o)

Adds the specified element to this set if it is not already present.

Specified by:

add in interface Collection

Specified by:

add in interface Set

Overrides:

add in class AbstractCollection

Parameters

o - element to be added to this set

Returns

true if this set did not already contain o

See Also

Collection.add(java.lang.Object)

remove

public boolean remove(Object o)

Removes the given element from this set if it is present.

Specified by:

remove in interface Collection

Specified by:

remove in interface Set

Overrides:

remove in class AbstractCollection

Parameters

o - the element to remove

Returns

true if o was in this set

See Also

Collection.remove(java.lang.Object)

clear

public void clear()

Remove all the elements from this set

Specified by:

clear in interface Collection

Specified by:

clear in interface Set

Overrides:

clear in class AbstractCollection

See Also

Collection.clear()