public class Double2ObjectMaps
extends java.lang.Object
Maps
,
Collections
Modifier and Type | Class and Description |
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static class |
Double2ObjectMaps.EmptyMap<V>
An immutable class representing an empty type-specific map.
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static class |
Double2ObjectMaps.Singleton<V>
An immutable class representing a type-specific singleton map.
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static class |
Double2ObjectMaps.SynchronizedMap<V>
A synchronized wrapper class for maps.
|
static class |
Double2ObjectMaps.UnmodifiableMap<V>
An unmodifiable wrapper class for maps.
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Modifier and Type | Field and Description |
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static Double2ObjectMaps.EmptyMap |
EMPTY_MAP
An empty type-specific map (immutable).
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Modifier and Type | Method and Description |
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static <V> Double2ObjectMap<V> |
singleton(double key,
V value)
Returns a type-specific immutable map containing only the specified pair.
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static <V> Double2ObjectMap<V> |
singleton(java.lang.Double key,
V value)
Returns a type-specific immutable map containing only the specified pair.
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static <V> Double2ObjectMap<V> |
synchronize(Double2ObjectMap<V> m)
Returns a synchronized type-specific map backed by the given type-specific map.
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static <V> Double2ObjectMap<V> |
synchronize(Double2ObjectMap<V> m,
java.lang.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 <V> Double2ObjectMap<V> |
unmodifiable(Double2ObjectMap<V> m)
Returns an unmodifiable type-specific map backed by the given type-specific map.
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public static final Double2ObjectMaps.EmptyMap EMPTY_MAP
public static <V> Double2ObjectMap<V> singleton(double key, V 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 <V> Double2ObjectMap<V> singleton(java.lang.Double key, V 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 <V> Double2ObjectMap<V> synchronize(Double2ObjectMap<V> m)
m
- the map to be wrapped in a synchronized map.Collections.synchronizedMap(Map)
public static <V> Double2ObjectMap<V> synchronize(Double2ObjectMap<V> m, java.lang.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 <V> Double2ObjectMap<V> unmodifiable(Double2ObjectMap<V> m)
m
- the map to be wrapped in an unmodifiable map.Collections.unmodifiableMap(Map)