public static class ConcurrentHashMapV8.KeySetView<K,V>
extends java.lang.Object
implements java.util.Set<K>, java.io.Serializable
Set of keys, in
which additions may optionally be enabled by mapping to a
common value. This class cannot be directly instantiated.
See keySet(),
keySet(V),
newKeySet(),
newKeySet(int).| Modifier and Type | Method and Description |
|---|---|
boolean |
add(K e)
Adds the specified key to this set view by mapping the key to
the default mapped value in the backing map, if defined.
|
boolean |
addAll(java.util.Collection<? extends K> c)
Adds all of the elements in the specified collection to this set,
as if by calling
add(K) on each one. |
void |
clear()
Removes all of the elements from this view, by removing all
the mappings from the map backing this view.
|
boolean |
contains(java.lang.Object o) |
boolean |
containsAll(java.util.Collection<?> c) |
boolean |
equals(java.lang.Object o) |
void |
forEach(ConcurrentHashMapV8.Action<? super K> action) |
ConcurrentHashMapV8<K,V> |
getMap()
Returns the map backing this view.
|
V |
getMappedValue()
Returns the default mapped value for additions,
or
null if additions are not supported. |
int |
hashCode() |
boolean |
isEmpty() |
java.util.Iterator<K> |
iterator()
Returns a "weakly consistent" iterator that will never
throw
ConcurrentModificationException, and
guarantees to traverse elements as they existed upon
construction of the iterator, and may (but is not
guaranteed to) reflect any modifications subsequent to
construction. |
boolean |
remove(java.lang.Object o)
Removes the key from this map view, by removing the key (and its
corresponding value) from the backing map.
|
boolean |
removeAll(java.util.Collection<?> c) |
boolean |
retainAll(java.util.Collection<?> c) |
int |
size() |
ConcurrentHashMapV8.ConcurrentHashMapSpliterator<K> |
spliterator166() |
java.lang.Object[] |
toArray() |
<T> T[] |
toArray(T[] a) |
java.lang.String |
toString()
Returns a string representation of this collection.
|
clone, finalize, getClass, notify, notifyAll, wait, wait, waitpublic V getMappedValue()
null if additions are not supported.null
if not supportedpublic boolean contains(java.lang.Object o)
public boolean remove(java.lang.Object o)
public java.util.Iterator<K> iterator()
ConcurrentModificationException, and
guarantees to traverse elements as they existed upon
construction of the iterator, and may (but is not
guaranteed to) reflect any modifications subsequent to
construction.public boolean add(K e)
add in interface java.util.Collection<K>add in interface java.util.Set<K>e - key to be addedtrue if this set changed as a result of the calljava.lang.NullPointerException - if the specified key is nulljava.lang.UnsupportedOperationException - if no default mapped value
for additions was providedpublic boolean addAll(java.util.Collection<? extends K> c)
add(K) on each one.addAll in interface java.util.Collection<K>addAll in interface java.util.Set<K>c - the elements to be inserted into this settrue if this set changed as a result of the calljava.lang.NullPointerException - if the collection or any of its
elements are nulljava.lang.UnsupportedOperationException - if no default mapped value
for additions was providedpublic int hashCode()
public boolean equals(java.lang.Object o)
public ConcurrentHashMapV8.ConcurrentHashMapSpliterator<K> spliterator166()
public void forEach(ConcurrentHashMapV8.Action<? super K> action)
public ConcurrentHashMapV8<K,V> getMap()
public final void clear()
clear in interface java.util.Collection<E>public final int size()
size in interface java.util.Collection<E>public final boolean isEmpty()
isEmpty in interface java.util.Collection<E>public final java.lang.Object[] toArray()
toArray in interface java.util.Collection<E>public final <T> T[] toArray(T[] a)
toArray in interface java.util.Collection<E>public final java.lang.String toString()
"[]").
Adjacent elements are separated by the characters ", "
(comma and space). Elements are converted to strings as by
String.valueOf(Object).toString in class java.lang.Objectpublic final boolean containsAll(java.util.Collection<?> c)
containsAll in interface java.util.Collection<E>public final boolean removeAll(java.util.Collection<?> c)
removeAll in interface java.util.Collection<E>public final boolean retainAll(java.util.Collection<?> c)
retainAll in interface java.util.Collection<E>Copyright © 2018. All Rights Reserved.