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java.lang.Objectit.unimi.dsi.fastutil.objects.Object2DoubleMaps
public class Object2DoubleMaps
A class providing static methods and objects that do useful things with type-specific maps.
Maps
,
Collections
Nested Class Summary | |
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static class |
Object2DoubleMaps.EmptyMap<K>
An immutable class representing an empty type-specific map. |
static class |
Object2DoubleMaps.Singleton<K>
An immutable class representing a type-specific singleton map. |
static class |
Object2DoubleMaps.SynchronizedMap<K>
A synchronized wrapper class for maps. |
static class |
Object2DoubleMaps.UnmodifiableMap<K>
An unmodifiable wrapper class for maps. |
Field Summary | |
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static Object2DoubleMaps.EmptyMap |
EMPTY_MAP
An empty type-specific map (immutable). |
Method Summary | ||
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static
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singleton(K key,
double value)
Returns a type-specific immutable map containing only the specified pair. |
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static
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singleton(K key,
Double value)
Returns a type-specific immutable map containing only the specified pair. |
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static
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synchronize(Object2DoubleMap<K> m)
Returns a synchronized type-specific map backed by the given type-specific map. |
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static
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synchronize(Object2DoubleMap<K> m,
Object sync)
Returns a synchronized type-specific map backed by the given type-specific map, using an assigned object to synchronize. |
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static
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unmodifiable(Object2DoubleMap<K> m)
Returns an unmodifiable type-specific map backed by the given type-specific map. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final Object2DoubleMaps.EmptyMap EMPTY_MAP
Method Detail |
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public static <K> Object2DoubleMap<K> singleton(K key, double value)
Note that albeit the returned map is immutable, its default return value may be changed.
key
- the only key of the returned map.value
- the only value of the returned map.
<key,value>
.public static <K> Object2DoubleMap<K> singleton(K key, Double value)
Note that albeit the returned map is immutable, its default return value may be changed.
key
- the only key of the returned map.value
- the only value of the returned map.
<key,value>
.public static <K> Object2DoubleMap<K> synchronize(Object2DoubleMap<K> m)
m
- the map to be wrapped in a synchronized map.
Collections.synchronizedMap(Map)
public static <K> Object2DoubleMap<K> synchronize(Object2DoubleMap<K> m, Object sync)
m
- the map to be wrapped in a synchronized map.sync
- an object that will be used to synchronize the access to the map.
Collections.synchronizedMap(Map)
public static <K> Object2DoubleMap<K> unmodifiable(Object2DoubleMap<K> m)
m
- the map to be wrapped in an unmodifiable map.
Collections.unmodifiableMap(Map)
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