org.infinispan.util.concurrent
Class ConcurrentHashSet<E>
java.lang.Object
java.util.AbstractCollection<E>
java.util.AbstractSet<E>
org.infinispan.util.concurrent.ConcurrentHashSet<E>
- All Implemented Interfaces:
- Serializable, Iterable<E>, Collection<E>, Set<E>
public class ConcurrentHashSet<E>
- extends AbstractSet<E>
- implements Serializable
A simple Set implementation backed by a ConcurrentHashMap
to deal with the fact that the
JDK does not have a proper concurrent Set implementation that uses efficient lock striping.
Note that values are stored as keys in the underlying Map, with a static dummy object as value.
- Since:
- 4.0
- Author:
- Manik Surtani
- See Also:
- Serialized Form
map
protected final ConcurrentHashMap<E,Object> map
ConcurrentHashSet
public ConcurrentHashSet()
ConcurrentHashSet
public ConcurrentHashSet(int concurrencyLevel)
- Parameters:
concurrencyLevel
- passed in to the underlying CHM. See ConcurrentHashMap.ConcurrentHashMap(int,
float, int)
javadocs for details.
ConcurrentHashSet
public ConcurrentHashSet(int initSize,
float loadFactor,
int concurrencyLevel)
- Params passed in to the underlying CHM. See
ConcurrentHashMap.ConcurrentHashMap(int,
float, int)
javadocs for details.
size
public int size()
- Specified by:
size
in interface Collection<E>
- Specified by:
size
in interface Set<E>
- Specified by:
size
in class AbstractCollection<E>
isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interface Collection<E>
- Specified by:
isEmpty
in interface Set<E>
- Overrides:
isEmpty
in class AbstractCollection<E>
contains
public boolean contains(Object o)
- Specified by:
contains
in interface Collection<E>
- Specified by:
contains
in interface Set<E>
- Overrides:
contains
in class AbstractCollection<E>
iterator
public Iterator<E> iterator()
- Specified by:
iterator
in interface Iterable<E>
- Specified by:
iterator
in interface Collection<E>
- Specified by:
iterator
in interface Set<E>
- Specified by:
iterator
in class AbstractCollection<E>
toArray
public Object[] toArray()
- Specified by:
toArray
in interface Collection<E>
- Specified by:
toArray
in interface Set<E>
- Overrides:
toArray
in class AbstractCollection<E>
toArray
public <T> T[] toArray(T[] a)
- Specified by:
toArray
in interface Collection<E>
- Specified by:
toArray
in interface Set<E>
- Overrides:
toArray
in class AbstractCollection<E>
add
public boolean add(E o)
- Specified by:
add
in interface Collection<E>
- Specified by:
add
in interface Set<E>
- Overrides:
add
in class AbstractCollection<E>
remove
public boolean remove(Object o)
- Specified by:
remove
in interface Collection<E>
- Specified by:
remove
in interface Set<E>
- Overrides:
remove
in class AbstractCollection<E>
containsAll
public boolean containsAll(Collection<?> c)
- Specified by:
containsAll
in interface Collection<E>
- Specified by:
containsAll
in interface Set<E>
- Overrides:
containsAll
in class AbstractCollection<E>
addAll
public boolean addAll(Collection<? extends E> c)
- Specified by:
addAll
in interface Collection<E>
- Specified by:
addAll
in interface Set<E>
- Overrides:
addAll
in class AbstractCollection<E>
retainAll
public boolean retainAll(Collection<?> c)
- Specified by:
retainAll
in interface Collection<E>
- Specified by:
retainAll
in interface Set<E>
- Overrides:
retainAll
in class AbstractCollection<E>
removeAll
public boolean removeAll(Collection<?> c)
- Specified by:
removeAll
in interface Collection<E>
- Specified by:
removeAll
in interface Set<E>
- Overrides:
removeAll
in class AbstractSet<E>
clear
public void clear()
- Specified by:
clear
in interface Collection<E>
- Specified by:
clear
in interface Set<E>
- Overrides:
clear
in class AbstractCollection<E>
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