Package it.unimi.dsi.fastutil.longs
Class Long2BooleanMaps
- java.lang.Object
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- it.unimi.dsi.fastutil.longs.Long2BooleanMaps
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public final class Long2BooleanMaps extends java.lang.Object
A class providing static methods and objects that do useful things with type-specific maps.- See Also:
Collections
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Long2BooleanMaps.EmptyMap
An immutable class representing an empty type-specific map.static class
Long2BooleanMaps.Singleton
An immutable class representing a type-specific singleton map.static class
Long2BooleanMaps.SynchronizedMap
A synchronized wrapper class for maps.static class
Long2BooleanMaps.UnmodifiableMap
An unmodifiable wrapper class for maps.
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Field Summary
Fields Modifier and Type Field Description static Long2BooleanMaps.EmptyMap
EMPTY_MAP
An empty type-specific map (immutable).
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static void
fastForEach(Long2BooleanMap map, java.util.function.Consumer<? super Long2BooleanMap.Entry> consumer)
Iterates quickly, if possible, on the entry set of the providedmap
.static ObjectIterable<Long2BooleanMap.Entry>
fastIterable(Long2BooleanMap map)
Returns an iterable yielding an iterator that will be fast, if possible, on the entry set of the providedmap
.static ObjectIterator<Long2BooleanMap.Entry>
fastIterator(Long2BooleanMap map)
Returns an iterator that will be fast, if possible, on the entry set of the providedmap
.static Long2BooleanMap
singleton(long key, boolean value)
Returns a type-specific immutable map containing only the specified pair.static Long2BooleanMap
singleton(java.lang.Long key, java.lang.Boolean value)
Returns a type-specific immutable map containing only the specified pair.static Long2BooleanMap
synchronize(Long2BooleanMap m)
Returns a synchronized type-specific map backed by the given type-specific map.static Long2BooleanMap
synchronize(Long2BooleanMap m, java.lang.Object sync)
Returns a synchronized type-specific map backed by the given type-specific map, using an assigned object to synchronize.static Long2BooleanMap
unmodifiable(Long2BooleanMap m)
Returns an unmodifiable type-specific map backed by the given type-specific map.
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Field Detail
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EMPTY_MAP
public static final Long2BooleanMaps.EmptyMap EMPTY_MAP
An empty type-specific map (immutable). It is serializable and cloneable.
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Method Detail
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fastIterator
public static ObjectIterator<Long2BooleanMap.Entry> fastIterator(Long2BooleanMap map)
Returns an 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) iterator on the entry set.- Returns:
- an iterator on the entry set of the given map that will be fast, if possible.
- Since:
- 8.0.0
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fastForEach
public static void fastForEach(Long2BooleanMap map, java.util.function.Consumer<? super Long2BooleanMap.Entry> consumer)
Iterates quickly, if possible, on the entry set of the providedmap
.- Parameters:
map
- a map on which we will try to iterate quickly.consumer
- the consumer that will be passed toLong2BooleanMap.FastEntrySet.fastForEach(Consumer)
, if possible, or toIterable.forEach(Consumer)
.- Since:
- 8.1.0
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fastIterable
public static ObjectIterable<Long2BooleanMap.Entry> fastIterable(Long2BooleanMap map)
Returns an iterable yielding an 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) iterator on the entry set.- Returns:
- an iterable yielding an 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 Long2BooleanMap singleton(long key, boolean value)
Returns a type-specific immutable map containing only the specified pair. The returned 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 map.value
- the only value of the returned map.- Returns:
- a type-specific immutable map containing just the pair
<key,value>
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singleton
public static Long2BooleanMap singleton(java.lang.Long key, java.lang.Boolean value)
Returns a type-specific immutable map containing only the specified pair. The returned 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 map.value
- the only value of the returned map.- Returns:
- a type-specific immutable map containing just the pair
<key,value>
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synchronize
public static Long2BooleanMap synchronize(Long2BooleanMap m)
Returns a synchronized type-specific map backed by the given type-specific map.- Parameters:
m
- the map to be wrapped in a synchronized map.- Returns:
- a synchronized view of the specified map.
- See Also:
Collections.synchronizedMap(Map)
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synchronize
public static Long2BooleanMap synchronize(Long2BooleanMap m, java.lang.Object sync)
Returns a synchronized type-specific map backed by the given type-specific map, using an assigned object to synchronize.- Parameters:
m
- the map to be wrapped in a synchronized map.sync
- an object that will be used to synchronize the access to the map.- Returns:
- a synchronized view of the specified map.
- See Also:
Collections.synchronizedMap(Map)
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unmodifiable
public static Long2BooleanMap unmodifiable(Long2BooleanMap m)
Returns an unmodifiable type-specific map backed by the given type-specific map.- Parameters:
m
- the map to be wrapped in an unmodifiable map.- Returns:
- an unmodifiable view of the specified map.
- See Also:
Collections.unmodifiableMap(Map)
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