public static class Reference2DoubleFunctions.UnmodifiableFunction<K> extends AbstractReference2DoubleFunction<K> implements java.io.Serializable
Modifier and Type | Method and Description |
---|---|
void |
clear()
Removes all associations from this function (optional operation).
|
boolean |
containsKey(java.lang.Object k)
Returns true if this function contains a mapping for the specified key.
|
double |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(double defRetValue)
Sets the default return value.
|
double |
getDouble(java.lang.Object k)
Returns the value to which the given key is mapped.
|
double |
put(K k,
double v)
Adds a pair to the map.
|
double |
removeDouble(java.lang.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.
|
java.lang.String |
toString() |
get, put, remove
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(java.lang.Object k)
Function
Note that for some kind of functions (e.g., hashes) this method will always return true.
containsKey
in interface Function<K,java.lang.Double>
k
- the key.key
.Map.containsKey(Object)
public double defaultReturnValue()
Reference2DoubleFunction
defaultReturnValue
in interface Reference2DoubleFunction<K>
defaultReturnValue
in class AbstractReference2DoubleFunction<K>
public void defaultReturnValue(double defRetValue)
Reference2DoubleFunction
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 Reference2DoubleFunction<K>
defaultReturnValue
in class AbstractReference2DoubleFunction<K>
defRetValue
- the new default return value.Reference2DoubleFunction.defaultReturnValue()
public double put(K k, double v)
Reference2DoubleFunction
put
in interface Reference2DoubleFunction<K>
put
in class AbstractReference2DoubleFunction<K>
k
- the key.v
- the value.Function.put(Object,Object)
public void clear()
Function
public java.lang.String toString()
toString
in class java.lang.Object
public double removeDouble(java.lang.Object k)
Reference2DoubleFunction
removeDouble
in interface Reference2DoubleFunction<K>
removeDouble
in class AbstractReference2DoubleFunction<K>
k
- the key.Function.remove(Object)
public double getDouble(java.lang.Object k)
Reference2DoubleFunction
getDouble
in interface Reference2DoubleFunction<K>
k
- the key.Function.get(Object)