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) |
boolean |
equals(java.lang.Object o) |
void |
forEach(java.util.function.BiConsumer<? super K,? super V> consumer) |
V |
getOrDefault(java.lang.Object key,
V defaultValue)
Returns the value associated by this function to the specified key, or give the specified
value if not present.
|
int |
hashCode() |
boolean |
isEmpty() |
ObjectSet<K> |
keySet() |
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() |
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
clear, compute, computeIfAbsent, computeIfPresent, computeObjectIfAbsentPartial, containsKey, defaultReturnValue, defaultReturnValue, entrySet, merge, put, putIfAbsent, remove, remove, replace, replace, size
andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get
public boolean containsValue(java.lang.Object v)
public V getOrDefault(java.lang.Object key, V defaultValue)
Object2ObjectFunction
getOrDefault
in interface Object2ObjectFunction<K,V>
getOrDefault
in interface Object2ObjectMap<K,V>
getOrDefault
in interface java.util.Map<K,V>
getOrDefault
in class Object2ObjectFunctions.EmptyFunction<K,V>
key
- the key.defaultValue
- the value to return if not present.defaultValue
if no value was present for the given key.Function.getOrDefault(Object, Object)
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 Map.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>
Map.entrySet()
public ObjectSet<K> keySet()
Object2ObjectMap
public ObjectCollection<V> values()
Object2ObjectMap
public java.lang.Object clone()
clone
in class Object2ObjectFunctions.EmptyFunction<K,V>
public int hashCode()
public boolean equals(java.lang.Object o)
public java.lang.String toString()
toString
in class Object2ObjectFunctions.EmptyFunction<K,V>