E - A class implementing Comparable or able to be
compared by a provided comparator.@InterfaceAudience.Private public class SortedCopyOnWriteSet<E> extends Object implements SortedSet<E>
SortedSet implementation that uses an internal
TreeSet to provide ordering. All mutation operations
create a new copy of the TreeSet instance, so are very
expensive. This class is only intended for use on small, very rarely
written collections that expect highly concurrent reads. Read operations
are performed on a reference to the internal TreeSet at the
time of invocation, so will not see any mutations to the collection during
their operation.
Note that due to the use of a TreeSet internally,
a Comparator instance must be provided, or collection
elements must implement Comparable.
| Modifier and Type | Field and Description |
|---|---|
private SortedSet<E> |
internalSet |
| Constructor and Description |
|---|
SortedCopyOnWriteSet() |
SortedCopyOnWriteSet(Collection<? extends E> c) |
SortedCopyOnWriteSet(Comparator<? super E> comparator) |
| Modifier and Type | Method and Description |
|---|---|
boolean |
add(E e) |
boolean |
addAll(Collection<? extends E> c) |
void |
clear() |
Comparator<? super E> |
comparator() |
boolean |
contains(Object o) |
boolean |
containsAll(Collection<?> c) |
E |
first() |
SortedSet<E> |
headSet(E toElement) |
boolean |
isEmpty() |
Iterator<E> |
iterator() |
E |
last() |
boolean |
remove(Object o) |
boolean |
removeAll(Collection<?> c) |
boolean |
retainAll(Collection<?> c) |
int |
size() |
SortedSet<E> |
subSet(E fromElement,
E toElement) |
SortedSet<E> |
tailSet(E fromElement) |
Object[] |
toArray() |
<T> T[] |
toArray(T[] a) |
public SortedCopyOnWriteSet()
public SortedCopyOnWriteSet(Collection<? extends E> c)
public SortedCopyOnWriteSet(Comparator<? super E> comparator)
public int size()
public boolean isEmpty()
public boolean contains(Object o)
public Object[] toArray()
public <T> T[] toArray(T[] a)
public boolean add(E e)
public boolean remove(Object o)
public boolean containsAll(Collection<?> c)
containsAll in interface Collection<E>containsAll in interface Set<E>public boolean addAll(Collection<? extends E> c)
public boolean retainAll(Collection<?> c)
public boolean removeAll(Collection<?> c)
public void clear()
public Comparator<? super E> comparator()
comparator in interface SortedSet<E>Copyright © 2007–2019 The Apache Software Foundation. All rights reserved.