it.unimi.dsi.fastutil.doubles

Class DoubleSortedSets

java.lang.Object

it.unimi.dsi.fastutil.doubles.DoubleSortedSets

public class DoubleSortedSets
extends Object

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

See Also:

Collections

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DoubleSortedSets.EmptySet An immutable class representing the empty sorted set and implementing a type-specific set interface.
static class	DoubleSortedSets.Singleton A class representing a singleton sorted set.
static class	DoubleSortedSets.SynchronizedSortedSet A synchronized wrapper class for sorted sets.
static class	DoubleSortedSets.UnmodifiableSortedSet An unmodifiable wrapper class for sorted sets.

Field Summary

Fields

Modifier and Type	Field and Description
static DoubleSortedSets.EmptySet	EMPTY_SET An empty sorted set (immutable).

Method Summary

Modifier and Type	Method and Description
static DoubleSortedSet	singleton(double element) Returns a type-specific immutable sorted set containing only the specified element.
static DoubleSortedSet	singleton(double element, DoubleComparator comparator) Returns a type-specific immutable sorted set containing only the specified element, and using a specified comparator.
static DoubleSortedSet	singleton(Object element) Returns a type-specific immutable sorted set containing only the specified element.
static DoubleSortedSet	singleton(Object element, DoubleComparator comparator) Returns a type-specific immutable sorted set containing only the specified element, and using a specified comparator.
static DoubleSortedSet	synchronize(DoubleSortedSet s) Returns a synchronized type-specific sorted set backed by the given type-specific sorted set.
static DoubleSortedSet	synchronize(DoubleSortedSet s, Object sync) Returns a synchronized type-specific sorted set backed by the given type-specific sorted set, using an assigned object to synchronize.
static DoubleSortedSet	unmodifiable(DoubleSortedSet s) Returns an unmodifiable type-specific sorted set backed by the given type-specific sorted set.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EMPTY_SET

public static final DoubleSortedSets.EmptySet EMPTY_SET

An empty sorted 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 DoubleSortedSet singleton(double element)

Returns a type-specific immutable sorted set containing only the specified element. The returned sorted set is serializable and cloneable.

Parameters:

element - the only element of the returned sorted set.

Returns:

a type-specific immutable sorted set containing just element.

singleton

public static DoubleSortedSet singleton(double element,
                                        DoubleComparator comparator)

Returns a type-specific immutable sorted set containing only the specified element, and using a specified comparator. The returned sorted set is serializable and cloneable.

Parameters:

element - the only element of the returned sorted set.

comparator - the comparator to use in the returned sorted set.

Returns:

a type-specific immutable sorted set containing just element.

singleton

public static DoubleSortedSet singleton(Object element)

Returns a type-specific immutable sorted set containing only the specified element. The returned sorted set is serializable and cloneable.

Parameters:

element - the only element of the returned sorted set.

Returns:

a type-specific immutable sorted set containing just element.

singleton

public static DoubleSortedSet singleton(Object element,
                                        DoubleComparator comparator)

Returns a type-specific immutable sorted set containing only the specified element, and using a specified comparator. The returned sorted set is serializable and cloneable.

Parameters:

element - the only element of the returned sorted set.

comparator - the comparator to use in the returned sorted set.

Returns:

a type-specific immutable sorted set containing just element.

synchronize

public static DoubleSortedSet synchronize(DoubleSortedSet s)

Returns a synchronized type-specific sorted set backed by the given type-specific sorted set.

Parameters:

s - the sorted set to be wrapped in a synchronized sorted set.

Returns:

a synchronized view of the specified sorted set.

See Also:

Collections.synchronizedSortedSet(SortedSet)

synchronize

public static DoubleSortedSet synchronize(DoubleSortedSet s,
                                          Object sync)

Returns a synchronized type-specific sorted set backed by the given type-specific sorted set, using an assigned object to synchronize.

Parameters:

s - the sorted set to be wrapped in a synchronized sorted set.

sync - an object that will be used to synchronize the access to the sorted set.

Returns:

a synchronized view of the specified sorted set.

See Also:

Collections.synchronizedSortedSet(SortedSet)

unmodifiable

public static DoubleSortedSet unmodifiable(DoubleSortedSet s)

Returns an unmodifiable type-specific sorted set backed by the given type-specific sorted set.

Parameters:

s - the sorted set to be wrapped in an unmodifiable sorted set.

Returns:

an unmodifiable view of the specified sorted set.

See Also:

Collections.unmodifiableSortedSet(SortedSet)