public static class Object2ObjectMaps.EmptyMap<K,V> extends Object2ObjectFunctions.EmptyFunction<K,V> implements Object2ObjectMap<K,V>, java.io.Serializable, java.lang.Cloneable
This class may be useful to implement your own in case you subclass a type-specific map.
Object2ObjectMap.Entry<K,V>, Object2ObjectMap.FastEntrySet<K,V>
Modifier and Type | Method and Description |
---|---|
java.lang.Object |
clone() |
boolean |
containsValue(java.lang.Object v) |
ObjectSet<java.util.Map.Entry<K,V>> |
entrySet()
Returns a set view of the mappings contained in this map.
|
boolean |
equals(java.lang.Object o) |
int |
hashCode() |
boolean |
isEmpty() |
ObjectSet<K> |
keySet()
Returns a set view of the keys contained in this map.
|
ObjectSet<Object2ObjectMap.Entry<K,V>> |
object2ObjectEntrySet()
Returns a type-specific set view of the mappings contained in this map.
|
void |
putAll(java.util.Map<? extends K,? extends V> m) |
java.lang.String |
toString() |
ObjectCollection<V> |
values()
Returns a set view of the values contained in this map.
|
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
put, remove
defaultReturnValue, defaultReturnValue
public boolean containsValue(java.lang.Object v)
public ObjectSet<Object2ObjectMap.Entry<K,V>> object2ObjectEntrySet()
Object2ObjectMap
This method is necessary because there is no inheritance along
type parameters: it is thus impossible to strengthen Object2ObjectMap.entrySet()
so that it returns an ObjectSet
of type-specific entries (the latter makes it possible to
access keys and values with type-specific methods).
object2ObjectEntrySet
in interface Object2ObjectMap<K,V>
Object2ObjectMap.entrySet()
public ObjectSet<K> keySet()
Object2ObjectMap
Note that this specification strengthens the one given in Map.keySet()
.
public ObjectCollection<V> values()
Object2ObjectMap
Note that this specification strengthens the one given in Map.values()
.
public java.lang.Object clone()
clone
in class Object2ObjectFunctions.EmptyFunction<K,V>
public ObjectSet<java.util.Map.Entry<K,V>> entrySet()
Object2ObjectMap
Note that this specification strengthens the one given in Map.entrySet()
.
public int hashCode()
public boolean equals(java.lang.Object o)
public java.lang.String toString()
toString
in class java.lang.Object