public final class Object2IntMaps
extends java.lang.Object
Collections
Modifier and Type | Class and Description |
---|---|
static class |
Object2IntMaps.EmptyMap<K>
An immutable class representing an empty type-specific map.
|
static class |
Object2IntMaps.Singleton<K>
An immutable class representing a type-specific singleton map.
|
static class |
Object2IntMaps.SynchronizedMap<K>
A synchronized wrapper class for maps.
|
static class |
Object2IntMaps.UnmodifiableMap<K>
An unmodifiable wrapper class for maps.
|
Modifier and Type | Field and Description |
---|---|
static Object2IntMaps.EmptyMap |
EMPTY_MAP
An empty type-specific map (immutable).
|
Modifier and Type | Method and Description |
---|---|
static <K> Object2IntMap<K> |
emptyMap()
Returns an empty map (immutable).
|
static <K> void |
fastForEach(Object2IntMap<K> map,
java.util.function.Consumer<? super Object2IntMap.Entry<K>> consumer)
Iterates quickly, if possible, on the entry set of the provided
map . |
static <K> ObjectIterable<Object2IntMap.Entry<K>> |
fastIterable(Object2IntMap<K> map)
Returns an iterable yielding an iterator that will be fast, if possible, on the entry set of the provided
map . |
static <K> ObjectIterator<Object2IntMap.Entry<K>> |
fastIterator(Object2IntMap<K> map)
Returns an iterator that will be fast, if possible, on the entry set of the provided
map . |
static <K> Object2IntMap<K> |
singleton(K key,
int value)
Returns a type-specific immutable map containing only the specified pair.
|
static <K> Object2IntMap<K> |
singleton(K key,
java.lang.Integer value)
Returns a type-specific immutable map containing only the specified pair.
|
static <K> Object2IntMap<K> |
synchronize(Object2IntMap<K> m)
Returns a synchronized type-specific map backed by the given type-specific map.
|
static <K> Object2IntMap<K> |
synchronize(Object2IntMap<K> 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 <K> Object2IntMap<K> |
unmodifiable(Object2IntMap<? extends K> m)
Returns an unmodifiable type-specific map backed by the given type-specific map.
|
public static final Object2IntMaps.EmptyMap EMPTY_MAP
public static <K> ObjectIterator<Object2IntMap.Entry<K>> fastIterator(Object2IntMap<K> map)
map
.map
- a map from which we will try to extract a (fast) iterator on the entry set.public static <K> void fastForEach(Object2IntMap<K> map, java.util.function.Consumer<? super Object2IntMap.Entry<K>> consumer)
map
.map
- a map on which we will try to iterate quickly.consumer
- the consumer that will be passed to Object2IntMap.FastEntrySet.fastForEach(Consumer)
, if possible, or to Iterable.forEach(Consumer)
.public static <K> ObjectIterable<Object2IntMap.Entry<K>> fastIterable(Object2IntMap<K> map)
map
.map
- a map from which we will try to extract an iterable yielding a (fast) iterator on the entry set.public static <K> Object2IntMap<K> emptyMap()
This method provides a typesafe access to EMPTY_MAP
.
public static <K> Object2IntMap<K> singleton(K key, int 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> Object2IntMap<K> singleton(K key, java.lang.Integer 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> Object2IntMap<K> synchronize(Object2IntMap<K> m)
m
- the map to be wrapped in a synchronized map.Collections.synchronizedMap(Map)
public static <K> Object2IntMap<K> synchronize(Object2IntMap<K> 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 <K> Object2IntMap<K> unmodifiable(Object2IntMap<? extends K> m)
m
- the map to be wrapped in an unmodifiable map.Collections.unmodifiableMap(Map)