public static class Object2ReferenceMaps.EmptyMap<K,V> extends Object2ReferenceFunctions.EmptyFunction<K,V> implements Object2ReferenceMap<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.
Object2ReferenceMap.Entry<K,V>, Object2ReferenceMap.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<Object2ReferenceMap.Entry<K,V>> |
object2ReferenceEntrySet()
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() |
ReferenceCollection<V> |
values() |
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
clear, compute, computeIfAbsent, computeIfPresent, computeReferenceIfAbsentPartial, 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)
Object2ReferenceFunction
getOrDefault
in interface Object2ReferenceFunction<K,V>
getOrDefault
in interface Object2ReferenceMap<K,V>
getOrDefault
in interface java.util.Map<K,V>
getOrDefault
in class Object2ReferenceFunctions.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<Object2ReferenceMap.Entry<K,V>> object2ReferenceEntrySet()
Object2ReferenceMap
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).
object2ReferenceEntrySet
in interface Object2ReferenceMap<K,V>
Map.entrySet()
public ObjectSet<K> keySet()
Object2ReferenceMap
public ReferenceCollection<V> values()
Object2ReferenceMap
public java.lang.Object clone()
clone
in class Object2ReferenceFunctions.EmptyFunction<K,V>
public int hashCode()
public boolean equals(java.lang.Object o)
public java.lang.String toString()
toString
in class Object2ReferenceFunctions.EmptyFunction<K,V>