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java.lang.Object net.sf.ehcache.util.concurrent.ConcurrentHashMap.KeySetView<K,V>
public static class ConcurrentHashMap.KeySetView<K,V>
A view of a ConcurrentHashMap as a Set
of keys, in
which additions may optionally be enabled by mapping to a
common value. This class cannot be directly instantiated. See
ConcurrentHashMap.keySet
, ConcurrentHashMap.keySet(Object)
, ConcurrentHashMap.newKeySet()
,
ConcurrentHashMap.newKeySet(int)
.
Method Summary | ||
---|---|---|
boolean |
add(K e)
|
|
boolean |
addAll(Collection<? extends K> c)
|
|
void |
clear()
|
|
boolean |
contains(Object o)
|
|
boolean |
containsAll(Collection<?> c)
|
|
boolean |
equals(Object o)
|
|
ConcurrentHashMap<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()
|
|
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(Object o)
|
|
boolean |
removeAll(Collection<?> c)
|
|
boolean |
retainAll(Collection<?> c)
|
|
int |
size()
|
|
Object[] |
toArray()
|
|
|
toArray(T[] a)
|
|
String |
toString()
|
Methods inherited from class java.lang.Object |
---|
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Set |
---|
clear, containsAll, hashCode, isEmpty, removeAll, retainAll, size, toArray, toArray |
Method Detail |
---|
public V getMappedValue()
null
if additions are not supported.
null
if not supported.public boolean contains(Object o)
contains
in interface Collection<K>
contains
in interface Set<K>
public boolean remove(Object o)
remove
in interface Collection<K>
remove
in interface Set<K>
public 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.
iterator
in interface Iterable<K>
iterator
in interface Collection<K>
iterator
in interface Set<K>
public boolean add(K e)
add
in interface Collection<K>
add
in interface Set<K>
public boolean addAll(Collection<? extends K> c)
addAll
in interface Collection<K>
addAll
in interface Set<K>
public boolean equals(Object o)
equals
in interface Collection<K>
equals
in interface Set<K>
equals
in class Object
public ConcurrentHashMap<K,V> getMap()
public final int size()
public final boolean isEmpty()
public final void clear()
public final Object[] toArray()
public final <T> T[] toArray(T[] a)
public final int hashCode()
hashCode
in class Object
public final String toString()
toString
in class Object
public final boolean containsAll(Collection<?> c)
public final boolean removeAll(Collection<?> c)
public final boolean retainAll(Collection<?> c)
|
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