public static class Double2BooleanFunctions.SynchronizedFunction extends AbstractDouble2BooleanFunction implements Serializable
Modifier and Type | Method and Description |
---|---|
void |
clear()
Removes all associations from this function (optional operation).
|
boolean |
containsKey(double k) |
boolean |
containsKey(Object ok)
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(double k)
Returns the value to which the given key is mapped.
|
Boolean |
get(Object k)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
boolean |
put(double k,
boolean v)
Adds a pair to the map.
|
Boolean |
put(Double k,
Boolean v)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
boolean |
remove(double k)
Removes the mapping with the given key.
|
Boolean |
remove(Object k)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing 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(double k)
containsKey
in interface Double2BooleanFunction
Function.containsKey(Object)
public boolean defaultReturnValue()
Double2BooleanFunction
defaultReturnValue
in interface Double2BooleanFunction
defaultReturnValue
in class AbstractDouble2BooleanFunction
public void defaultReturnValue(boolean defRetValue)
Double2BooleanFunction
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 Double2BooleanFunction
defaultReturnValue
in class AbstractDouble2BooleanFunction
defRetValue
- the new default return value.Double2BooleanFunction.defaultReturnValue()
public boolean put(double k, boolean v)
Double2BooleanFunction
put
in interface Double2BooleanFunction
put
in class AbstractDouble2BooleanFunction
k
- the key.v
- the value.Function.put(Object,Object)
public void clear()
Function
clear
in interface Function<Double,Boolean>
clear
in class AbstractDouble2BooleanFunction
Map.clear()
public Boolean put(Double k, Boolean v)
AbstractDouble2BooleanFunction
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<Double,Boolean>
put
in class AbstractDouble2BooleanFunction
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)
AbstractDouble2BooleanFunction
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<Double,Boolean>
get
in class AbstractDouble2BooleanFunction
k
- the key.null
if no value was present for the given key.Map.get(Object)
public Boolean remove(Object k)
AbstractDouble2BooleanFunction
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<Double,Boolean>
remove
in class AbstractDouble2BooleanFunction
k
- the key.null
if no value was present for the given key.Map.remove(Object)
public boolean remove(double k)
Double2BooleanFunction
remove
in interface Double2BooleanFunction
remove
in class AbstractDouble2BooleanFunction
k
- the key.Function.remove(Object)
public boolean get(double k)
Double2BooleanFunction
get
in interface Double2BooleanFunction
k
- the key.Function.get(Object)
public boolean containsKey(Object ok)
Function
Note that for some kind of functions (e.g., hashes) this method will always return true.
containsKey
in interface Function<Double,Boolean>
containsKey
in class AbstractDouble2BooleanFunction
ok
- the key.key
.Map.containsKey(Object)