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java.lang.Objectit.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction<V>
it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.UnmodifiableFunction<V>
public static class Double2ObjectFunctions.UnmodifiableFunction<V>
An unmodifiable wrapper class for functions.
Field Summary | |
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protected Double2ObjectFunction<V> |
function
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static long |
serialVersionUID
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Fields inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction |
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defRetValue |
Constructor Summary | |
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protected |
Double2ObjectFunctions.UnmodifiableFunction(Double2ObjectFunction<V> f)
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Method Summary | |
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void |
clear()
Removes all associations from this function (optional operation). |
boolean |
containsKey(double k)
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boolean |
containsKey(Object ok)
Returns true if this function contains a mapping for the specified key. |
V |
defaultReturnValue()
Gets the default return value. |
void |
defaultReturnValue(V defRetValue)
Sets the default return value. |
V |
get(double k)
Returns the value to which the given key is mapped. |
V |
get(Object k)
Delegates to the corresponding type-specific method, taking care of returning null on a missing key. |
V |
put(double k,
V v)
Adds a pair to the map. |
V |
remove(double k)
Removes the mapping with the given key. |
V |
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()
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Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction |
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put |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final long serialVersionUID
protected final Double2ObjectFunction<V> function
Constructor Detail |
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protected Double2ObjectFunctions.UnmodifiableFunction(Double2ObjectFunction<V> f)
Method Detail |
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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.
size
in interface Function<Double,V>
public boolean containsKey(double k)
containsKey
in interface Double2ObjectFunction<V>
Function.containsKey(Object)
public V defaultReturnValue()
Double2ObjectFunction
defaultReturnValue
in interface Double2ObjectFunction<V>
defaultReturnValue
in class AbstractDouble2ObjectFunction<V>
public void defaultReturnValue(V defRetValue)
Double2ObjectFunction
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 Double2ObjectFunction<V>
defaultReturnValue
in class AbstractDouble2ObjectFunction<V>
defRetValue
- the new default return value.Double2ObjectFunction.defaultReturnValue()
public V put(double k, V v)
Double2ObjectFunction
put
in interface Double2ObjectFunction<V>
put
in class AbstractDouble2ObjectFunction<V>
k
- the key.v
- the value.
Function.put(Object,Object)
public void clear()
Function
clear
in interface Function<Double,V>
clear
in class AbstractDouble2ObjectFunction<V>
Map.clear()
public String toString()
toString
in class Object
public V remove(double k)
Double2ObjectFunction
remove
in interface Double2ObjectFunction<V>
remove
in class AbstractDouble2ObjectFunction<V>
Function.remove(Object)
public V get(double k)
Double2ObjectFunction
get
in interface Double2ObjectFunction<V>
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,V>
containsKey
in class AbstractDouble2ObjectFunction<V>
ok
- the key.
key
.Map.containsKey(Object)
public V remove(Object k)
AbstractDouble2ObjectFunction
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,V>
remove
in class AbstractDouble2ObjectFunction<V>
null
if no value was present for the given key.Map.remove(Object)
public V get(Object k)
AbstractDouble2ObjectFunction
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,V>
get
in class AbstractDouble2ObjectFunction<V>
k
- the key.
null
if no value was present for the given key.Map.get(Object)
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