Class ReferenceSortedSets.EmptySet<K>
- java.lang.Object
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- java.util.AbstractCollection<K>
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- it.unimi.dsi.fastutil.objects.AbstractReferenceCollection<K>
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- it.unimi.dsi.fastutil.objects.ReferenceCollections.EmptyCollection<K>
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- it.unimi.dsi.fastutil.objects.ReferenceSets.EmptySet<K>
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- it.unimi.dsi.fastutil.objects.ReferenceSortedSets.EmptySet<K>
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- All Implemented Interfaces:
ObjectBidirectionalIterable<K>
,ObjectIterable<K>
,ReferenceCollection<K>
,ReferenceSet<K>
,ReferenceSortedSet<K>
,Serializable
,Cloneable
,Iterable<K>
,Collection<K>
,Set<K>
,SortedSet<K>
- Enclosing class:
- ReferenceSortedSets
public static class ReferenceSortedSets.EmptySet<K> extends ReferenceSets.EmptySet<K> implements ReferenceSortedSet<K>, Serializable, Cloneable
An immutable class representing the empty sorted set and implementing a type-specific set interface.This class may be useful to implement your own in case you subclass a type-specific sorted set.
- See Also:
- Serialized Form
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Object
clone()
Comparator<? super K>
comparator()
K
first()
ReferenceSortedSet<K>
headSet(K from)
Returns a view of the portion of this sorted set whose elements are strictly less thantoElement
.ObjectBidirectionalIterator<K>
iterator(K from)
Returns a type-specificBidirectionalIterator
on the elements in this set, starting from a given element of the domain (optional operation).K
last()
ReferenceSortedSet<K>
subSet(K from, K to)
Returns a view of the portion of this sorted set whose elements range fromfromElement
, inclusive, totoElement
, exclusive.ReferenceSortedSet<K>
tailSet(K to)
Returns a view of the portion of this sorted set whose elements are greater than or equal tofromElement
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Methods inherited from class it.unimi.dsi.fastutil.objects.ReferenceSets.EmptySet
equals, remove
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Methods inherited from class it.unimi.dsi.fastutil.objects.ReferenceCollections.EmptyCollection
addAll, clear, contains, hashCode, iterator, removeAll, retainAll, size, toArray
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Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractReferenceCollection
toString
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Methods inherited from class java.util.AbstractCollection
add, containsAll, isEmpty, toArray
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Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream, toArray
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Methods inherited from interface it.unimi.dsi.fastutil.objects.ReferenceSortedSet
iterator
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Methods inherited from interface java.util.Set
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, size, toArray, toArray
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Methods inherited from interface java.util.SortedSet
spliterator
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Method Detail
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iterator
public ObjectBidirectionalIterator<K> iterator(K from)
Description copied from interface:ReferenceSortedSet
Returns a type-specificBidirectionalIterator
on the elements in this set, starting from a given element of the domain (optional operation).This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point,
hasNext()
will returnfalse
). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point,hasPrevious()
will returnfalse
).Note that passing the last element of the set as starting point and calling
previous()
you can traverse the entire set in reverse order.- Specified by:
iterator
in interfaceReferenceSortedSet<K>
- Parameters:
from
- an element to start from.- Returns:
- a bidirectional iterator on the element in this set, starting at the given element.
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subSet
public ReferenceSortedSet<K> subSet(K from, K to)
Description copied from interface:ReferenceSortedSet
Returns a view of the portion of this sorted set whose elements range fromfromElement
, inclusive, totoElement
, exclusive.Note that this specification strengthens the one given in
SortedSet.subSet(Object,Object)
.- Specified by:
subSet
in interfaceReferenceSortedSet<K>
- Specified by:
subSet
in interfaceSortedSet<K>
- See Also:
SortedSet.subSet(Object,Object)
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headSet
public ReferenceSortedSet<K> headSet(K from)
Description copied from interface:ReferenceSortedSet
Returns a view of the portion of this sorted set whose elements are strictly less thantoElement
.Note that this specification strengthens the one given in
SortedSet.headSet(Object)
.- Specified by:
headSet
in interfaceReferenceSortedSet<K>
- Specified by:
headSet
in interfaceSortedSet<K>
- See Also:
SortedSet.headSet(Object)
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tailSet
public ReferenceSortedSet<K> tailSet(K to)
Description copied from interface:ReferenceSortedSet
Returns a view of the portion of this sorted set whose elements are greater than or equal tofromElement
.Note that this specification strengthens the one given in
SortedSet.headSet(Object)
.- Specified by:
tailSet
in interfaceReferenceSortedSet<K>
- Specified by:
tailSet
in interfaceSortedSet<K>
- See Also:
SortedSet.tailSet(Object)
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comparator
public Comparator<? super K> comparator()
- Specified by:
comparator
in interfaceSortedSet<K>
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clone
public Object clone()
- Overrides:
clone
in classReferenceSets.EmptySet<K>
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