it.unimi.dsi.fastutil.longs
Class LongSets

java.lang.Object
  extended by it.unimi.dsi.fastutil.longs.LongSets

public class LongSets
extends Object

A class providing static methods and objects that do useful things with type-specific sets.

See Also:
Collections

Nested Class Summary
static class LongSets.EmptySet
          An immutable class representing the empty set and implementing a type-specific set interface.
static class LongSets.Singleton
          An immutable class representing a type-specific singleton set.
static class LongSets.SynchronizedSet
          A synchronized wrapper class for sets.
static class LongSets.UnmodifiableSet
          An unmodifiable wrapper class for sets.
 
Field Summary
static LongSets.EmptySet EMPTY_SET
          An empty set (immutable).
 
Method Summary
static LongSet singleton(long element)
          Returns a type-specific immutable set containing only the specified element.
static LongSet singleton(Long element)
          Returns a type-specific immutable set containing only the specified element.
static LongSet synchronize(LongSet s)
          Returns a synchronized type-specific set backed by the given type-specific set.
static LongSet synchronize(LongSet s, Object sync)
          Returns a synchronized type-specific set backed by the given type-specific set, using an assigned object to synchronize.
static LongSet unmodifiable(LongSet s)
          Returns an unmodifiable type-specific set backed by the given type-specific set.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

EMPTY_SET

public static final LongSets.EmptySet EMPTY_SET
An empty set (immutable). It is serializable and cloneable.

The class of this objects represent an abstract empty set that is a subset of a (sorted) type-specific set.

Method Detail

singleton

public static LongSet singleton(long element)
Returns a type-specific immutable set containing only the specified element. The returned set is serializable and cloneable.

Parameters:
element - the only element of the returned set.
Returns:
a type-specific immutable set containing just element.

singleton

public static LongSet singleton(Long element)
Returns a type-specific immutable set containing only the specified element. The returned set is serializable and cloneable.

Parameters:
element - the only element of the returned set.
Returns:
a type-specific immutable set containing just element.

synchronize

public static LongSet synchronize(LongSet s)
Returns a synchronized type-specific set backed by the given type-specific set.

Parameters:
s - the set to be wrapped in a synchronized set.
Returns:
a synchronized view of the specified set.
See Also:
Collections.synchronizedSet(Set)

synchronize

public static LongSet synchronize(LongSet s,
                                  Object sync)
Returns a synchronized type-specific set backed by the given type-specific set, using an assigned object to synchronize.

Parameters:
s - the set to be wrapped in a synchronized set.
sync - an object that will be used to synchronize the access to the set.
Returns:
a synchronized view of the specified set.
See Also:
Collections.synchronizedSet(Set)

unmodifiable

public static LongSet unmodifiable(LongSet s)
Returns an unmodifiable type-specific set backed by the given type-specific set.

Parameters:
s - the set to be wrapped in an unmodifiable set.
Returns:
an unmodifiable view of the specified set.
See Also:
Collections.unmodifiableSet(Set)


Copyright © 2011. All Rights Reserved.