Package it.unimi.dsi.fastutil.longs
Class Long2IntSortedMaps
- java.lang.Object
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- it.unimi.dsi.fastutil.longs.Long2IntSortedMaps
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public final class Long2IntSortedMaps extends Object
A class providing static methods and objects that do useful things with type-specific sorted maps.- See Also:
Collections
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Nested Class Summary
Nested Classes Modifier and Type Class Description static classLong2IntSortedMaps.EmptySortedMapAn immutable class representing an empty type-specific sorted map.static classLong2IntSortedMaps.SingletonAn immutable class representing a type-specific singleton sorted map.static classLong2IntSortedMaps.SynchronizedSortedMapA synchronized wrapper class for sorted maps.static classLong2IntSortedMaps.UnmodifiableSortedMapAn unmodifiable wrapper class for sorted maps.
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Field Summary
Fields Modifier and Type Field Description static Long2IntSortedMaps.EmptySortedMapEMPTY_MAPAn empty sorted map (immutable).
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Method Summary
Modifier and Type Method Description static Comparator<? super Map.Entry<Long,?>>entryComparator(LongComparator comparator)Returns a comparator for entries based on a given comparator on keys.static ObjectBidirectionalIterable<Long2IntMap.Entry>fastIterable(Long2IntSortedMap map)static ObjectBidirectionalIterator<Long2IntMap.Entry>fastIterator(Long2IntSortedMap map)static Long2IntSortedMapsingleton(long key, int value)Returns a type-specific immutable sorted map containing only the specified pair.static Long2IntSortedMapsingleton(long key, int value, LongComparator comparator)Returns a type-specific immutable sorted map containing only the specified pair.static Long2IntSortedMapsingleton(Long key, Integer value)Returns a type-specific immutable sorted map containing only the specified pair.static Long2IntSortedMapsingleton(Long key, Integer value, LongComparator comparator)RETURNS a type-specific immutable sorted map containing only the specified pair.static Long2IntSortedMapsynchronize(Long2IntSortedMap m)Returns a synchronized type-specific sorted map backed by the given type-specific sorted map.static Long2IntSortedMapsynchronize(Long2IntSortedMap m, Object sync)Returns a synchronized type-specific sorted map backed by the given type-specific sorted map, using an assigned object to synchronize.static Long2IntSortedMapunmodifiable(Long2IntSortedMap m)Returns an unmodifiable type-specific sorted map backed by the given type-specific sorted map.
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Field Detail
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EMPTY_MAP
public static final Long2IntSortedMaps.EmptySortedMap EMPTY_MAP
An empty sorted map (immutable). It is serializable and cloneable.
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Method Detail
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entryComparator
public static Comparator<? super Map.Entry<Long,?>> entryComparator(LongComparator comparator)
Returns a comparator for entries based on a given comparator on keys.- Parameters:
comparator- a comparator on keys.- Returns:
- the associated comparator on entries.
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fastIterator
public static ObjectBidirectionalIterator<Long2IntMap.Entry> fastIterator(Long2IntSortedMap map)
Returns a bidirectional iterator that will be fast, if possible, on the entry set of the providedmap.- Parameters:
map- a map from which we will try to extract a (fast) bidirectional iterator on the entry set.- Returns:
- a bidirectional iterator on the entry set of the given map that will be fast, if possible.
- Since:
- 8.0.0
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fastIterable
public static ObjectBidirectionalIterable<Long2IntMap.Entry> fastIterable(Long2IntSortedMap map)
Returns an iterable yielding a bidirectional iterator that will be fast, if possible, on the entry set of the providedmap.- Parameters:
map- a map from which we will try to extract an iterable yielding a (fast) bidirectional iterator on the entry set.- Returns:
- an iterable yielding a bidirectional iterator on the entry set of the given map that will be fast, if possible.
- Since:
- 8.0.0
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singleton
public static Long2IntSortedMap singleton(Long key, Integer value)
Returns a type-specific immutable sorted map containing only the specified pair. The returned sorted map is serializable and cloneable.Note that albeit the returned map is immutable, its default return value may be changed.
- Parameters:
key- the only key of the returned sorted map.value- the only value of the returned sorted map.- Returns:
- a type-specific immutable sorted map containing just the pair
<key,value>.
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singleton
public static Long2IntSortedMap singleton(Long key, Integer value, LongComparator comparator)
RETURNS a type-specific immutable sorted map containing only the specified pair. The returned sorted map is serializable and cloneable.Note that albeit the returned map is immutable, its default return value may be changed.
- Parameters:
key- the only key of the returned sorted map.value- the only value of the returned sorted map.comparator- the comparator to use in the returned sorted map.- Returns:
- a type-specific immutable sorted map containing just the pair
<key,value>.
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singleton
public static Long2IntSortedMap singleton(long key, int value)
Returns a type-specific immutable sorted map containing only the specified pair. The returned sorted map is serializable and cloneable.Note that albeit the returned map is immutable, its default return value may be changed.
- Parameters:
key- the only key of the returned sorted map.value- the only value of the returned sorted map.- Returns:
- a type-specific immutable sorted map containing just the pair
<key,value>.
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singleton
public static Long2IntSortedMap singleton(long key, int value, LongComparator comparator)
Returns a type-specific immutable sorted map containing only the specified pair. The returned sorted map is serializable and cloneable.Note that albeit the returned map is immutable, its default return value may be changed.
- Parameters:
key- the only key of the returned sorted map.value- the only value of the returned sorted map.comparator- the comparator to use in the returned sorted map.- Returns:
- a type-specific immutable sorted map containing just the pair
<key,value>.
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synchronize
public static Long2IntSortedMap synchronize(Long2IntSortedMap m)
Returns a synchronized type-specific sorted map backed by the given type-specific sorted map.- Parameters:
m- the sorted map to be wrapped in a synchronized sorted map.- Returns:
- a synchronized view of the specified sorted map.
- See Also:
Collections.synchronizedSortedMap(SortedMap)
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synchronize
public static Long2IntSortedMap synchronize(Long2IntSortedMap m, Object sync)
Returns a synchronized type-specific sorted map backed by the given type-specific sorted map, using an assigned object to synchronize.- Parameters:
m- the sorted map to be wrapped in a synchronized sorted map.sync- an object that will be used to synchronize the access to the sorted sorted map.- Returns:
- a synchronized view of the specified sorted map.
- See Also:
Collections.synchronizedSortedMap(SortedMap)
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unmodifiable
public static Long2IntSortedMap unmodifiable(Long2IntSortedMap m)
Returns an unmodifiable type-specific sorted map backed by the given type-specific sorted map.- Parameters:
m- the sorted map to be wrapped in an unmodifiable sorted map.- Returns:
- an unmodifiable view of the specified sorted map.
- See Also:
Collections.unmodifiableSortedMap(SortedMap)
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