public static class Reference2ReferenceFunctions.Singleton<K,V> extends AbstractReference2ReferenceFunction<K,V> implements java.io.Serializable, java.lang.Cloneable
Note that albeit the function is immutable, its default return value may be changed.
This class may be useful to implement your own in case you subclass a type-specific function.
Modifier and Type | Method and Description |
---|---|
java.lang.Object |
clone() |
boolean |
containsKey(java.lang.Object k) |
V |
get(java.lang.Object k)
Returns the value to which the given key is mapped.
|
V |
getOrDefault(java.lang.Object k,
V defaultValue)
Returns the value associated by this function to the specified key, or give the specified
value if not present.
|
int |
size() |
defaultReturnValue, defaultReturnValue
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, put, remove
public boolean containsKey(java.lang.Object k)
public V get(java.lang.Object k)
Reference2ReferenceFunction
get
in interface Reference2ReferenceFunction<K,V>
k
- the key.Function.get(Object)
public V getOrDefault(java.lang.Object k, V defaultValue)
Reference2ReferenceFunction
getOrDefault
in interface Reference2ReferenceFunction<K,V>
k
- 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 int size()
public java.lang.Object clone()
clone
in class java.lang.Object