public abstract class AbstractChar2FloatFunction extends java.lang.Object implements Char2FloatFunction, java.io.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(java.lang.Object ok)
Returns true if this function contains a mapping for the specified key.
|
float |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(float rv)
Sets the default return value.
|
java.lang.Float |
get(java.lang.Object ok)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
java.lang.Float |
put(java.lang.Character ok,
java.lang.Float ov)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
float |
put(char key,
float value)
Adds a pair to the map.
|
float |
remove(char key)
Removes the mapping with the given key.
|
java.lang.Float |
remove(java.lang.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, wait
containsKey, get
public void defaultReturnValue(float rv)
Char2FloatFunction
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 Char2FloatFunction
rv
- the new default return value.Char2FloatFunction.defaultReturnValue()
public float defaultReturnValue()
Char2FloatFunction
defaultReturnValue
in interface Char2FloatFunction
public float put(char key, float value)
Char2FloatFunction
put
in interface Char2FloatFunction
key
- the key.value
- the value.Function.put(Object,Object)
public float remove(char key)
Char2FloatFunction
remove
in interface Char2FloatFunction
Function.remove(Object)
public void clear()
Function
public boolean containsKey(java.lang.Object ok)
Function
Note that for some kind of functions (e.g., hashes) this method will always return true.
containsKey
in interface Function<java.lang.Character,java.lang.Float>
ok
- the key.key
.Map.containsKey(Object)
public java.lang.Float get(java.lang.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.
public java.lang.Float put(java.lang.Character ok, java.lang.Float 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.
public java.lang.Float remove(java.lang.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.