org.openide.util
Class WeakSet

java.lang.Object
  |
  +--java.util.AbstractCollection
        |
        +--java.util.AbstractSet
              |
              +--org.openide.util.WeakSet

All Implemented Interfaces:

Cloneable, Collection, Serializable, Set

public class WeakSet

extends AbstractSet

implements Cloneable, Serializable

Set which holds its members by using of WeakReferences. MT level: unsafe.

See Also:

Serialized Form

Constructor Summary

WeakSet()
Constructs a new set.

WeakSet(Collection c)
Constructs a new set containing the elements in the specified collection.

WeakSet(int initialCapacity)
Constructs a new, empty set;

WeakSet(int initialCapacity, float loadFactor)
Constructs a new, empty set;

Method Summary

boolean	add(Object o) Adds the specified element to this set if it is not already present.
void	clear() Removes all of the elements from this set.
Object	clone() Returns a shallow copy of this WeakSet instance: the elements themselves are not cloned.
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()
Object[]	toArray(Object[] array)
String	toString()

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, retainAll, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Set

addAll, containsAll, retainAll, toArray

Constructor Detail

WeakSet

public WeakSet()

Constructs a new set.

WeakSet

public WeakSet(Collection c)

Constructs a new set containing the elements in the specified collection.

Parameters:

c - a collection to add

WeakSet

public WeakSet(int initialCapacity)

Constructs a new, empty set;

Parameters:

initial - capacity

WeakSet

public WeakSet(int initialCapacity,
               float loadFactor)

Constructs a new, empty set;

Parameters:

initialCapacity -

loadFactor. -

Method Detail

add

public boolean add(Object o)

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

Overrides:

add in class AbstractCollection

Parameters:

o - an Object to add

clear

public void clear()

Removes all of the elements from this set.

Overrides:

clear in class AbstractCollection

clone

public Object clone()

Returns a shallow copy of this WeakSet instance: the elements themselves are not cloned.

Overrides:

clone in class Object

contains

public boolean contains(Object o)

Returns true if this set contains the specified element.

Overrides:

contains in class AbstractCollection

Parameters:

o - an Object to examine

isEmpty

public boolean isEmpty()

Returns true if this set contains no elements.

Overrides:

isEmpty in class AbstractCollection

iterator

public Iterator iterator()

Returns an iterator over the elements in this set.

Overrides:

iterator in class AbstractCollection

remove

public boolean remove(Object o)

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

Overrides:

remove in class AbstractCollection

Parameters:

o - an Object to remove

Returns:

true if and only if the Object was successfuly removed.

size

public int size()

Overrides:

size in class AbstractCollection

Returns:

the number of elements in this set (its cardinality).

toArray

public Object[] toArray(Object[] array)

Overrides:

toArray in class AbstractCollection

toString

public String toString()

Overrides:

toString in class AbstractCollection