public static class Long2ReferenceFunctions.Singleton<V> extends AbstractLong2ReferenceFunction<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(long k)
Returns true if this function contains a mapping for the specified key.
|
V |
get(long k)
Returns the value to which the given key is mapped.
|
V |
getOrDefault(long 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, apply, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, containsKey, get, getOrDefault, put, put, remove, remove
public boolean containsKey(long k)
Long2ReferenceFunction
Note that for some kind of functions (e.g., hashes) this method will always return true. In particular, this default implementation always returns true.
containsKey
in interface Long2ReferenceFunction<V>
k
- the key.key
.Function.containsKey(Object)
public V get(long k)
Long2ReferenceFunction
get
in interface Long2ReferenceFunction<V>
k
- the key.Function.get(Object)
public V getOrDefault(long k, V defaultValue)
Long2ReferenceFunction
getOrDefault
in interface Long2ReferenceFunction<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