Package it.unimi.dsi.fastutil.ints
Class Int2ByteMaps
- java.lang.Object
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- it.unimi.dsi.fastutil.ints.Int2ByteMaps
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public final class Int2ByteMaps 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
Int2ByteMaps.EmptyMap
An immutable class representing an empty type-specific map.static class
Int2ByteMaps.Singleton
An immutable class representing a type-specific singleton map.static class
Int2ByteMaps.SynchronizedMap
A synchronized wrapper class for maps.static class
Int2ByteMaps.UnmodifiableMap
An unmodifiable wrapper class for maps.
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Field Summary
Fields Modifier and Type Field Description static Int2ByteMaps.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(Int2ByteMap map, java.util.function.Consumer<? super Int2ByteMap.Entry> consumer)
Iterates quickly, if possible, on the entry set of the providedmap
.static ObjectIterable<Int2ByteMap.Entry>
fastIterable(Int2ByteMap map)
Returns an iterable yielding an iterator that will be fast, if possible, on the entry set of the providedmap
.static ObjectIterator<Int2ByteMap.Entry>
fastIterator(Int2ByteMap map)
Returns an iterator that will be fast, if possible, on the entry set of the providedmap
.static Int2ByteMap
singleton(int key, byte value)
Returns a type-specific immutable map containing only the specified pair.static Int2ByteMap
singleton(java.lang.Integer key, java.lang.Byte value)
Returns a type-specific immutable map containing only the specified pair.static Int2ByteMap
synchronize(Int2ByteMap m)
Returns a synchronized type-specific map backed by the given type-specific map.static Int2ByteMap
synchronize(Int2ByteMap 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 Int2ByteMap
unmodifiable(Int2ByteMap 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 Int2ByteMaps.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<Int2ByteMap.Entry> fastIterator(Int2ByteMap 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(Int2ByteMap map, java.util.function.Consumer<? super Int2ByteMap.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 toInt2ByteMap.FastEntrySet.fastForEach(Consumer)
, if possible, or toIterable.forEach(Consumer)
.- Since:
- 8.1.0
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fastIterable
public static ObjectIterable<Int2ByteMap.Entry> fastIterable(Int2ByteMap 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 Int2ByteMap singleton(int key, byte 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 Int2ByteMap singleton(java.lang.Integer key, java.lang.Byte 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 Int2ByteMap synchronize(Int2ByteMap 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 Int2ByteMap synchronize(Int2ByteMap 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 Int2ByteMap unmodifiable(Int2ByteMap 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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