public interface Object2DoubleMap<K> extends Object2DoubleFunction<K>, Map<K,Double>
Map
; provides some additional methods that use polymorphism to avoid (un)boxing, and handling of a default return value.
Besides extending the corresponding type-specific function, this interface strengthens entrySet()
,
keySet()
and values()
. Maps returning entry sets of type Object2DoubleMap.FastEntrySet
support also fast iteration.
A submap or subset may or may not have an independent default return value (which however must be initialized to the default return value of the originator).
Map
Modifier and Type | Interface and Description |
---|---|
static interface |
Object2DoubleMap.Entry<K>
A type-specific
Map.Entry ; provides some additional methods
that use polymorphism to avoid (un)boxing. |
static interface |
Object2DoubleMap.FastEntrySet<K>
An entry set providing fast iteration.
|
Modifier and Type | Method and Description |
---|---|
boolean |
containsValue(double value) |
ObjectSet<Map.Entry<K,Double>> |
entrySet()
Returns a set view of the mappings contained in this map.
|
ObjectSet<K> |
keySet()
Returns a set view of the keys contained in this map.
|
ObjectSet<Object2DoubleMap.Entry<K>> |
object2DoubleEntrySet()
Returns a type-specific set view of the mappings contained in this map.
|
DoubleCollection |
values()
Returns a set view of the values contained in this map.
|
defaultReturnValue, defaultReturnValue, getDouble, put, removeDouble
ObjectSet<Map.Entry<K,Double>> entrySet()
Note that this specification strengthens the one given in Map.entrySet()
.
entrySet
in interface Map<K,Double>
Map.entrySet()
ObjectSet<Object2DoubleMap.Entry<K>> object2DoubleEntrySet()
This method is necessary because there is no inheritance along
type parameters: it is thus impossible to strengthen entrySet()
so that it returns an ObjectSet
of objects of type Map.Entry
(the latter makes it possible to
access keys and values with type-specific methods).
entrySet()
ObjectSet<K> keySet()
Note that this specification strengthens the one given in Map.keySet()
.
keySet
in interface Map<K,Double>
Map.keySet()
DoubleCollection values()
Note that this specification strengthens the one given in Map.values()
.
values
in interface Map<K,Double>
Map.values()
boolean containsValue(double value)
Map.containsValue(Object)