public abstract class AbstractFloat2DoubleFunction extends java.lang.Object implements Float2DoubleFunction, 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.
|
double |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(double rv)
Sets the default return value.
|
java.lang.Double |
get(java.lang.Object ok)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
double |
put(float key,
double value)
Adds a pair to the map.
|
java.lang.Double |
put(java.lang.Float ok,
java.lang.Double ov)
Delegates to the corresponding type-specific method, taking care of returning
null on a missing key. |
double |
remove(float key)
Removes the mapping with the given key.
|
java.lang.Double |
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(double rv)
Float2DoubleFunction
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 Float2DoubleFunction
rv
- the new default return value.Float2DoubleFunction.defaultReturnValue()
public double defaultReturnValue()
Float2DoubleFunction
defaultReturnValue
in interface Float2DoubleFunction
public double put(float key, double value)
Float2DoubleFunction
put
in interface Float2DoubleFunction
key
- the key.value
- the value.Function.put(Object,Object)
public double remove(float key)
Float2DoubleFunction
remove
in interface Float2DoubleFunction
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.Float,java.lang.Double>
ok
- the key.key
.Map.containsKey(Object)
public java.lang.Double 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.Double put(java.lang.Float ok, java.lang.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.
public java.lang.Double 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.