public static class Reference2ObjectMaps.EmptyMap<K,V> extends Reference2ObjectFunctions.EmptyFunction<K,V> implements Reference2ObjectMap<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.
Reference2ObjectMap.Entry<K,V>, Reference2ObjectMap.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() |
ReferenceSet<K> |
keySet() |
void |
putAll(java.util.Map<? extends K,? extends V> m) |
ObjectSet<Reference2ObjectMap.Entry<K,V>> |
reference2ObjectEntrySet()
Returns a type-specific set view of the mappings contained in this map.
|
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)
Reference2ObjectFunction
getOrDefault
in interface Reference2ObjectFunction<K,V>
getOrDefault
in interface Reference2ObjectMap<K,V>
getOrDefault
in interface java.util.Map<K,V>
getOrDefault
in class Reference2ObjectFunctions.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<Reference2ObjectMap.Entry<K,V>> reference2ObjectEntrySet()
Reference2ObjectMap
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).
reference2ObjectEntrySet
in interface Reference2ObjectMap<K,V>
Map.entrySet()
public ReferenceSet<K> keySet()
Reference2ObjectMap
public ObjectCollection<V> values()
Reference2ObjectMap
public java.lang.Object clone()
clone
in class Reference2ObjectFunctions.EmptyFunction<K,V>
public int hashCode()
public boolean equals(java.lang.Object o)
public java.lang.String toString()
toString
in class Reference2ObjectFunctions.EmptyFunction<K,V>