public abstract class AbstractChar2DoubleFunction extends Object implements Char2DoubleFunction, Serializable
Optional operations just throw an UnsupportedOperationException. Generic versions of accessors delegate to the corresponding type-specific counterparts following the interface rules
(they take care of returning null on a missing key).
This class handles directly a default return value (including methods to access it). Instances of classes inheriting from this class have just to return
defRetValue to denote lack of a key in type-specific methods. The value is serialized.
Implementing subclasses have just to provide type-specific get(), type-specific containsKey(), and size() methods.
| Modifier and Type | Method and Description |
|---|---|
void |
clear()
Removes all associations from this function (optional operation).
|
boolean |
containsKey(Object ok)
Returns true if this function contains a mapping for the specified key.
|
double |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(double rv)
Sets the default return value.
|
Double |
get(Object ok)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
Double |
put(Character ok,
Double ov)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
double |
put(char key,
double value)
Adds a pair to the map.
|
double |
remove(char key)
Removes the mapping with the given key.
|
Double |
remove(Object ok)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitcontainsKey, getpublic void defaultReturnValue(double rv)
Char2DoubleFunctionget(), 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 Char2DoubleFunctionrv - the new default return value.Char2DoubleFunction.defaultReturnValue()public double defaultReturnValue()
Char2DoubleFunctiondefaultReturnValue in interface Char2DoubleFunctionpublic double put(char key,
double value)
Char2DoubleFunctionput in interface Char2DoubleFunctionkey - the key.value - the value.Function.put(Object,Object)public double remove(char key)
Char2DoubleFunctionremove in interface Char2DoubleFunctionkey - the key.Function.remove(Object)public void clear()
Functionclear in interface Function<Character,Double>Map.clear()public boolean containsKey(Object ok)
FunctionNote that for some kind of functions (e.g., hashes) this method will always return true.
containsKey in interface Function<Character,Double>ok - the key.key.Map.containsKey(Object)public Double get(Object ok)
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<Character,Double>ok - the key.null if no value was present for the given key.Map.get(Object)public Double put(Character ok, Double ov)
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<Character,Double>ok - the key.ov - the value.null if no value was present for the given key.Map.put(Object,Object)public Double remove(Object ok)
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<Character,Double>ok - the key.null if no value was present for the given key.Map.remove(Object)