public static class Object2BooleanFunctions.SynchronizedFunction<K> extends AbstractObject2BooleanFunction<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.
|
boolean |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(boolean defRetValue)
Sets the default return value.
|
Boolean |
get(Object k)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
boolean |
getBoolean(Object k)
Returns the value to which the given key is mapped.
|
boolean |
put(K k,
boolean v)
Adds a pair to the map.
|
Boolean |
put(K k,
Boolean v)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
Boolean |
remove(Object k)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
boolean |
removeBoolean(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,Boolean>
k
- the key.key
.Map.containsKey(Object)
public boolean defaultReturnValue()
Object2BooleanFunction
defaultReturnValue
in interface Object2BooleanFunction<K>
defaultReturnValue
in class AbstractObject2BooleanFunction<K>
public void defaultReturnValue(boolean defRetValue)
Object2BooleanFunction
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 Object2BooleanFunction<K>
defaultReturnValue
in class AbstractObject2BooleanFunction<K>
defRetValue
- the new default return value.Object2BooleanFunction.defaultReturnValue()
public boolean put(K k, boolean v)
Object2BooleanFunction
put
in interface Object2BooleanFunction<K>
put
in class AbstractObject2BooleanFunction<K>
k
- the key.v
- the value.Function.put(Object,Object)
public void clear()
Function
clear
in interface Function<K,Boolean>
clear
in class AbstractObject2BooleanFunction<K>
Map.clear()
public Boolean put(K k, Boolean v)
AbstractObject2BooleanFunction
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,Boolean>
put
in class AbstractObject2BooleanFunction<K>
k
- the key.v
- the value.null
if no value was present for the given key.Map.put(Object,Object)
public Boolean get(Object k)
AbstractObject2BooleanFunction
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,Boolean>
get
in class AbstractObject2BooleanFunction<K>
k
- the key.null
if no value was present for the given key.Map.get(Object)
public Boolean remove(Object k)
AbstractObject2BooleanFunction
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,Boolean>
remove
in class AbstractObject2BooleanFunction<K>
null
if no value was present for the given key.Map.remove(Object)
public boolean removeBoolean(Object k)
Object2BooleanFunction
removeBoolean
in interface Object2BooleanFunction<K>
removeBoolean
in class AbstractObject2BooleanFunction<K>
Function.remove(Object)
public boolean getBoolean(Object k)
Object2BooleanFunction
getBoolean
in interface Object2BooleanFunction<K>
k
- the key.Function.get(Object)