it.unimi.dsi.fastutil.doubles
Class Double2ObjectMaps.Singleton<V>

java.lang.Object
  extended by it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction<V>
      extended by it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.Singleton<V>
          extended by it.unimi.dsi.fastutil.doubles.Double2ObjectMaps.Singleton<V>
All Implemented Interfaces:
Double2ObjectFunction<V>, Double2ObjectMap<V>, Function<Double,V>, Serializable, Cloneable, Map<Double,V>
Direct Known Subclasses:
Double2ObjectSortedMaps.Singleton
Enclosing class:
Double2ObjectMaps

public static class Double2ObjectMaps.Singleton<V>
extends Double2ObjectFunctions.Singleton<V>
implements Double2ObjectMap<V>, Serializable, Cloneable

An immutable class representing a type-specific singleton map.

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

See Also:
Serialized Form

Nested Class Summary
protected  class Double2ObjectMaps.Singleton.SingletonEntry
           
 
Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectMap
Double2ObjectMap.Entry<V>, Double2ObjectMap.FastEntrySet<V>
 
Field Summary
protected  ObjectSet<Double2ObjectMap.Entry<V>> entries
           
protected  DoubleSet keys
           
static long serialVersionUID
           
protected  ObjectCollection<V> values
           
 
Fields inherited from class it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.Singleton
key, value
 
Fields inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction
defRetValue
 
Constructor Summary
protected Double2ObjectMaps.Singleton(double key, V value)
           
 
Method Summary
 boolean containsValue(Object v)
           
 ObjectSet<Double2ObjectMap.Entry<V>> double2ObjectEntrySet()
          Returns a type-specific set view of the mappings contained in this map.
 ObjectSet<Map.Entry<Double,V>> entrySet()
          Returns a set view of the mappings contained in this map.
 boolean equals(Object o)
           
 int hashCode()
           
 boolean isEmpty()
           
 DoubleSet keySet()
          Returns a set view of the keys contained in this map.
 void putAll(Map<? extends Double,? extends V> m)
           
 String toString()
           
 ObjectCollection<V> values()
          Returns a set view of the values contained in this map.
 
Methods inherited from class it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.Singleton
clone, containsKey, get, size
 
Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, put, put, remove, remove
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2ObjectFunction
containsKey, defaultReturnValue, defaultReturnValue, get, put, remove
 
Methods inherited from interface it.unimi.dsi.fastutil.Function
clear, containsKey, get, put, remove, size
 
Methods inherited from interface java.util.Map
clear, containsKey, get, put, remove, size
 

Field Detail

serialVersionUID

public static final long serialVersionUID
See Also:
Constant Field Values

entries

protected transient volatile ObjectSet<Double2ObjectMap.Entry<V>> entries

keys

protected transient volatile DoubleSet keys

values

protected transient volatile ObjectCollection<V> values
Constructor Detail

Double2ObjectMaps.Singleton

protected Double2ObjectMaps.Singleton(double key,
                                      V value)
Method Detail

containsValue

public boolean containsValue(Object v)
Specified by:
containsValue in interface Map<Double,V>

putAll

public void putAll(Map<? extends Double,? extends V> m)
Specified by:
putAll in interface Map<Double,V>

double2ObjectEntrySet

public ObjectSet<Double2ObjectMap.Entry<V>> double2ObjectEntrySet()
Description copied from interface: Double2ObjectMap
Returns a type-specific set view of the mappings contained in this map.

This method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Double2ObjectMap.entrySet() so that it returns an ObjectSet of objects of type Double2ObjectMap.Entry (the latter makes it possible to access keys and values with type-specific methods).

Specified by:
double2ObjectEntrySet in interface Double2ObjectMap<V>
Returns:
a type-specific set view of the mappings contained in this map.
See Also:
Double2ObjectMap.entrySet()

keySet

public DoubleSet keySet()
Description copied from interface: Double2ObjectMap
Returns a set view of the keys contained in this map.

Note that this specification strengthens the one given in Map.keySet().

Specified by:
keySet in interface Double2ObjectMap<V>
Specified by:
keySet in interface Map<Double,V>
Returns:
a set view of the keys contained in this map.
See Also:
Map.keySet()

values

public ObjectCollection<V> values()
Description copied from interface: Double2ObjectMap
Returns a set view of the values contained in this map.

Note that this specification strengthens the one given in Map.values().

Specified by:
values in interface Double2ObjectMap<V>
Specified by:
values in interface Map<Double,V>
Returns:
a set view of the values contained in this map.
See Also:
Map.values()

isEmpty

public boolean isEmpty()
Specified by:
isEmpty in interface Map<Double,V>

entrySet

public ObjectSet<Map.Entry<Double,V>> entrySet()
Description copied from interface: Double2ObjectMap
Returns a set view of the mappings contained in this map.

Note that this specification strengthens the one given in Map.entrySet().

Specified by:
entrySet in interface Double2ObjectMap<V>
Specified by:
entrySet in interface Map<Double,V>
Returns:
a set view of the mappings contained in this map.
See Also:
Map.entrySet()

hashCode

public int hashCode()
Specified by:
hashCode in interface Map<Double,V>
Overrides:
hashCode in class Object

equals

public boolean equals(Object o)
Specified by:
equals in interface Map<Double,V>
Overrides:
equals in class Object

toString

public String toString()
Overrides:
toString in class Object


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