public static class Reference2IntFunctions.SynchronizedFunction<K> extends AbstractReference2IntFunction<K> implements Serializable
Modifier and Type | Method and Description |
---|---|
void |
clear()
Removes all associations from this function (optional operation).
|
boolean |
containsKey(Object k)
Returns true if this function contains a mapping for the specified key.
|
int |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(int defRetValue)
Sets the default return value.
|
Integer |
get(Object k)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
int |
getInt(Object k)
Returns the value to which the given key is mapped.
|
int |
put(K k,
int v)
Adds a pair to the map.
|
Integer |
put(K k,
Integer v)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
Integer |
remove(Object k)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
int |
removeInt(Object k)
Removes the mapping with the given key.
|
int |
size()
Returns the intended number of keys in this function, or -1 if no such number exists.
|
String |
toString() |
public int size()
Function
Most function implementations will have some knowledge of the intended number of keys in their domain. In some cases, however, this might not be possible.
public boolean containsKey(Object k)
Function
Note that for some kind of functions (e.g., hashes) this method will always return true.
containsKey
in interface Function<K,Integer>
k
- the key.key
.Map.containsKey(Object)
public int defaultReturnValue()
Reference2IntFunction
defaultReturnValue
in interface Reference2IntFunction<K>
defaultReturnValue
in class AbstractReference2IntFunction<K>
public void defaultReturnValue(int defRetValue)
Reference2IntFunction
get()
, put()
and remove()
to
denote that the map does not contain the specified key. It must be
0/false
/null
by default.defaultReturnValue
in interface Reference2IntFunction<K>
defaultReturnValue
in class AbstractReference2IntFunction<K>
defRetValue
- the new default return value.Reference2IntFunction.defaultReturnValue()
public int put(K k, int v)
Reference2IntFunction
put
in interface Reference2IntFunction<K>
put
in class AbstractReference2IntFunction<K>
k
- the key.v
- the value.Function.put(Object,Object)
public void clear()
Function
clear
in interface Function<K,Integer>
clear
in class AbstractReference2IntFunction<K>
Map.clear()
public Integer put(K k, Integer v)
AbstractReference2IntFunction
null
on a missing key.
This method must check whether the provided key is in the map using containsKey()
. Thus,
it probes the map twice. Implementors of subclasses should override it with a more efficient method.
put
in interface Function<K,Integer>
put
in class AbstractReference2IntFunction<K>
k
- the key.v
- the value.null
if no value was present for the given key.Map.put(Object,Object)
public Integer get(Object k)
AbstractReference2IntFunction
null
on a missing key.
This method must check whether the provided key is in the map using containsKey()
. Thus,
it probes the map twice. Implementors of subclasses should override it with a more efficient method.
get
in interface Function<K,Integer>
get
in class AbstractReference2IntFunction<K>
k
- the key.null
if no value was present for the given key.Map.get(Object)
public Integer remove(Object k)
AbstractReference2IntFunction
null
on a missing key.
This method must check whether the provided key is in the map using containsKey()
. Thus,
it probes the map twice. Implementors of subclasses should override it with a more efficient method.
remove
in interface Function<K,Integer>
remove
in class AbstractReference2IntFunction<K>
k
- the key.null
if no value was present for the given key.Map.remove(Object)
public int removeInt(Object k)
Reference2IntFunction
removeInt
in interface Reference2IntFunction<K>
removeInt
in class AbstractReference2IntFunction<K>
k
- the key.Function.remove(Object)
public int getInt(Object k)
Reference2IntFunction
getInt
in interface Reference2IntFunction<K>
k
- the key.Function.get(Object)