public class ReferenceSortedSets extends Object
Collections
Modifier and Type | Class and Description |
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static class |
ReferenceSortedSets.EmptySet<K>
An immutable class representing the empty sorted set and implementing a type-specific set interface.
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static class |
ReferenceSortedSets.Singleton<K>
A class representing a singleton sorted set.
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static class |
ReferenceSortedSets.SynchronizedSortedSet<K>
A synchronized wrapper class for sorted sets.
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static class |
ReferenceSortedSets.UnmodifiableSortedSet<K>
An unmodifiable wrapper class for sorted sets.
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Modifier and Type | Field and Description |
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static ReferenceSortedSets.EmptySet |
EMPTY_SET
An empty sorted set (immutable).
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Modifier and Type | Method and Description |
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static <K> ReferenceSortedSet<K> |
singleton(K element)
Returns a type-specific immutable sorted set containing only the specified element.
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static <K> ReferenceSortedSet<K> |
singleton(K element,
Comparator<? super K> comparator)
Returns a type-specific immutable sorted set containing only the specified element, and using a specified comparator.
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static <K> ReferenceSortedSet<K> |
synchronize(ReferenceSortedSet<K> s)
Returns a synchronized type-specific sorted set backed by the given type-specific sorted set.
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static <K> ReferenceSortedSet<K> |
synchronize(ReferenceSortedSet<K> s,
Object sync)
Returns a synchronized type-specific sorted set backed by the given type-specific sorted set, using an assigned object to synchronize.
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static <K> ReferenceSortedSet<K> |
unmodifiable(ReferenceSortedSet<K> s)
Returns an unmodifiable type-specific sorted set backed by the given type-specific sorted set.
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public static final ReferenceSortedSets.EmptySet EMPTY_SET
The class of this objects represent an abstract empty set that is a subset of a (sorted) type-specific set.
public static <K> ReferenceSortedSet<K> singleton(K element)
element
- the only element of the returned sorted set.element
.public static <K> ReferenceSortedSet<K> singleton(K element, Comparator<? super K> comparator)
element
- the only element of the returned sorted set.comparator
- the comparator to use in the returned sorted set.element
.public static <K> ReferenceSortedSet<K> synchronize(ReferenceSortedSet<K> s)
s
- the sorted set to be wrapped in a synchronized sorted set.Collections.synchronizedSortedSet(SortedSet)
public static <K> ReferenceSortedSet<K> synchronize(ReferenceSortedSet<K> s, Object sync)
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.Collections.synchronizedSortedSet(SortedSet)
public static <K> ReferenceSortedSet<K> unmodifiable(ReferenceSortedSet<K> s)
s
- the sorted set to be wrapped in an unmodifiable sorted set.Collections.unmodifiableSortedSet(SortedSet)