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java.lang.Objectjava.util.AbstractCollection<E>
java.util.AbstractSet<E>
org.apache.wicket.util.collections.ConcurrentHashSet<E>
E - public class ConcurrentHashSet<E>
This class implements the Set interface, backed by a ConcurrentHashMap instance.
| Constructor Summary | |
|---|---|
ConcurrentHashSet()
Constructs a new, empty set; the backing ConcurrentHashMap instance has default initial capacity (16) and load factor (0.75). |
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ConcurrentHashSet(Collection<? extends E> c)
Constructs a new set containing the elements in the specified collection. |
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ConcurrentHashSet(int initialCapacity)
Constructs a new, empty set; the backing HashMap instance has the specified initial capacity and default load factor, which is 0.75. |
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ConcurrentHashSet(int initialCapacity,
float loadFactor)
Constructs a new, empty set; the backing ConcurrentHashMap instance has the specified initial capacity and the specified load factor. |
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| Method Summary | |
|---|---|
boolean |
add(E o)
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void |
clear()
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Object |
clone()
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boolean |
contains(Object o)
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boolean |
isEmpty()
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Iterator<E> |
iterator()
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boolean |
remove(Object o)
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int |
size()
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| Methods inherited from class java.util.AbstractSet |
|---|
equals, hashCode, removeAll |
| Methods inherited from class java.util.AbstractCollection |
|---|
addAll, containsAll, retainAll, toArray, toArray, toString |
| Methods inherited from class java.lang.Object |
|---|
finalize, getClass, notify, notifyAll, wait, wait, wait |
| Methods inherited from interface java.util.Set |
|---|
addAll, containsAll, equals, hashCode, removeAll, retainAll, toArray, toArray |
| Constructor Detail |
|---|
public ConcurrentHashSet()
public ConcurrentHashSet(Collection<? extends E> c)
c - the collection whose elements are to be placed into this set.
NullPointerException - if the specified collection is null.
public ConcurrentHashSet(int initialCapacity,
float loadFactor)
initialCapacity - the initial capacity of the hash map.loadFactor - the load factor of the hash map.
IllegalArgumentException - if the initial capacity is less than zero, or if the load factor is nonpositive.public ConcurrentHashSet(int initialCapacity)
initialCapacity - the initial capacity of the hash table.
IllegalArgumentException - if the initial capacity is less than zero.| Method Detail |
|---|
public Iterator<E> iterator()
iterator in interface Iterable<E>iterator in interface Collection<E>iterator in interface Set<E>iterator in class AbstractCollection<E>public int size()
size in interface Collection<E>size in interface Set<E>size in class AbstractCollection<E>public boolean isEmpty()
isEmpty in interface Collection<E>isEmpty in interface Set<E>isEmpty in class AbstractCollection<E>public boolean contains(Object o)
contains in interface Collection<E>contains in interface Set<E>contains in class AbstractCollection<E>public boolean add(E o)
add in interface Collection<E>add in interface Set<E>add in class AbstractCollection<E>public boolean remove(Object o)
remove in interface Collection<E>remove in interface Set<E>remove in class AbstractCollection<E>public void clear()
clear in interface Collection<E>clear in interface Set<E>clear in class AbstractCollection<E>
public Object clone()
throws CloneNotSupportedException
clone in class ObjectCloneNotSupportedException
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