repthy
Class ImmutableSet

Object
  AbstractCollection
      AbstractSet
          ImmutableSet

All Implemented Interfaces:

Collection, Set

Direct Known Subclasses:

Group, SingletonSortedSet

public abstract class ImmutableSet

extends AbstractSet

A Set that can't be modified once it's been created.

Author:

Mark McConnell

Constructor Summary

ImmutableSet()

Method Summary

boolean	add(Object o) Unsupported, because this set is immutable.
boolean	addAll(Collection c) Unsupported, because this set is immutable.
void	clear() Unsupported, because this set is immutable.
boolean	remove(Object o) Unsupported, because this set is immutable.
boolean	removeAll(Collection c) Unsupported, because this set is immutable.
boolean	retainAll(Collection c) Unsupported, because this set is immutable.

Methods inherited from class AbstractSet

equals, hashCode

Methods inherited from class AbstractCollection

contains, containsAll, isEmpty, iterator, size, toArray, toArray, toString

Methods inherited from class Object

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

Methods inherited from interface Set

contains, containsAll, isEmpty, iterator, size, toArray, toArray

Constructor Detail

ImmutableSet

public ImmutableSet()

Method Detail

add

public final boolean add(Object o)

Unsupported, because this set is immutable.

Throws:

UnsupportedOperationException - Always.

addAll

public final boolean addAll(Collection c)

Unsupported, because this set is immutable.

Throws:

UnsupportedOperationException - Always.

clear

public final void clear()

Unsupported, because this set is immutable.

Throws:

UnsupportedOperationException - Always.

remove

public final boolean remove(Object o)

Unsupported, because this set is immutable.

Throws:

UnsupportedOperationException - Always.

removeAll

public final boolean removeAll(Collection c)

Unsupported, because this set is immutable.

Throws:

UnsupportedOperationException - Always.

retainAll

public final boolean retainAll(Collection c)

Unsupported, because this set is immutable.

Throws:

UnsupportedOperationException - Always.