it.unimi.dsi.fastutil.doubles
Class Double2IntFunctions.Singleton

java.lang.Object
  extended by it.unimi.dsi.fastutil.doubles.AbstractDouble2IntFunction
      extended by it.unimi.dsi.fastutil.doubles.Double2IntFunctions.Singleton
All Implemented Interfaces:
Double2IntFunction, Function<Double,Integer>, Serializable, Cloneable
Direct Known Subclasses:
Double2IntMaps.Singleton
Enclosing class:
Double2IntFunctions

public static class Double2IntFunctions.Singleton
extends AbstractDouble2IntFunction
implements Serializable, Cloneable

An immutable class representing a type-specific singleton function.

This class may be useful to implement your own in case you subclass a type-specific function.

See Also:
Serialized Form

Field Summary
protected  double key
           
static long serialVersionUID
           
protected  int value
           
 
Fields inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2IntFunction
defRetValue
 
Constructor Summary
protected Double2IntFunctions.Singleton(double key, int value)
           
 
Method Summary
 Object clone()
           
 boolean containsKey(double k)
           
 int get(double k)
          Returns the value to which the given key is mapped.
 int size()
          Returns the intended number of keys in this function, or -1 if no such number exists.
 
Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2IntFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, put, put, remove, remove
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

serialVersionUID

public static final long serialVersionUID
See Also:
Constant Field Values

key

protected final double key

value

protected final int value
Constructor Detail

Double2IntFunctions.Singleton

protected Double2IntFunctions.Singleton(double key,
                                        int value)
Method Detail

containsKey

public boolean containsKey(double k)
Specified by:
containsKey in interface Double2IntFunction
See Also:
Function.containsKey(Object)

get

public int get(double k)
Description copied from interface: Double2IntFunction
Returns the value to which the given key is mapped.

Specified by:
get in interface Double2IntFunction
Parameters:
k - the key.
Returns:
the corresponding value, or the default return value if no value was present for the given key.
See Also:
Function.get(Object)

size

public int size()
Description copied from interface: Function
Returns the intended number of keys in this function, or -1 if no such number exists.

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.

Specified by:
size in interface Function<Double,Integer>
Returns:
the intended number of keys in this function, or -1 if that number is not available.

clone

public Object clone()
Overrides:
clone in class Object


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