it.unimi.dsi.fastutil.ints
Class Int2LongMaps.Singleton

java.lang.Object
  extended by it.unimi.dsi.fastutil.ints.AbstractInt2LongFunction
      extended by it.unimi.dsi.fastutil.ints.Int2LongFunctions.Singleton
          extended by it.unimi.dsi.fastutil.ints.Int2LongMaps.Singleton
All Implemented Interfaces:
Function<Integer,Long>, Int2LongFunction, Int2LongMap, Serializable, Cloneable, Map<Integer,Long>
Direct Known Subclasses:
Int2LongSortedMaps.Singleton
Enclosing class:
Int2LongMaps

public static class Int2LongMaps.Singleton
extends Int2LongFunctions.Singleton
implements Int2LongMap, 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 Int2LongMaps.Singleton.SingletonEntry
           
 
Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.ints.Int2LongMap
Int2LongMap.Entry, Int2LongMap.FastEntrySet
 
Field Summary
protected  ObjectSet<Int2LongMap.Entry> entries
           
protected  IntSet keys
           
static long serialVersionUID
           
protected  LongCollection values
           
 
Fields inherited from class it.unimi.dsi.fastutil.ints.Int2LongFunctions.Singleton
key, value
 
Fields inherited from class it.unimi.dsi.fastutil.ints.AbstractInt2LongFunction
defRetValue
 
Constructor Summary
protected Int2LongMaps.Singleton(int key, long value)
           
 
Method Summary
 boolean containsValue(long v)
           
 boolean containsValue(Object ov)
           
 ObjectSet<Map.Entry<Integer,Long>> entrySet()
          Returns a set view of the mappings contained in this map.
 boolean equals(Object o)
           
 int hashCode()
           
 ObjectSet<Int2LongMap.Entry> int2LongEntrySet()
          Returns a type-specific set view of the mappings contained in this map.
 boolean isEmpty()
           
 IntSet keySet()
          Returns a set view of the keys contained in this map.
 void putAll(Map<? extends Integer,? extends Long> m)
           
 String toString()
           
 LongCollection values()
          Returns a set view of the values contained in this map.
 
Methods inherited from class it.unimi.dsi.fastutil.ints.Int2LongFunctions.Singleton
clone, containsKey, get, size
 
Methods inherited from class it.unimi.dsi.fastutil.ints.AbstractInt2LongFunction
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.ints.Int2LongFunction
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<Int2LongMap.Entry> entries

keys

protected transient volatile IntSet keys

values

protected transient volatile LongCollection values
Constructor Detail

Int2LongMaps.Singleton

protected Int2LongMaps.Singleton(int key,
                                 long value)
Method Detail

containsValue

public boolean containsValue(long v)
Specified by:
containsValue in interface Int2LongMap
See Also:
Map.containsValue(Object)

containsValue

public boolean containsValue(Object ov)
Specified by:
containsValue in interface Map<Integer,Long>

putAll

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

int2LongEntrySet

public ObjectSet<Int2LongMap.Entry> int2LongEntrySet()
Description copied from interface: Int2LongMap
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 Int2LongMap.entrySet() so that it returns an ObjectSet of objects of type Int2LongMap.Entry (the latter makes it possible to access keys and values with type-specific methods).

Specified by:
int2LongEntrySet in interface Int2LongMap
Returns:
a type-specific set view of the mappings contained in this map.
See Also:
Int2LongMap.entrySet()

keySet

public IntSet keySet()
Description copied from interface: Int2LongMap
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 Int2LongMap
Specified by:
keySet in interface Map<Integer,Long>
Returns:
a set view of the keys contained in this map.
See Also:
Map.keySet()

values

public LongCollection values()
Description copied from interface: Int2LongMap
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 Int2LongMap
Specified by:
values in interface Map<Integer,Long>
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<Integer,Long>

entrySet

public ObjectSet<Map.Entry<Integer,Long>> entrySet()
Description copied from interface: Int2LongMap
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 Int2LongMap
Specified by:
entrySet in interface Map<Integer,Long>
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<Integer,Long>
Overrides:
hashCode in class Object

equals

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

toString

public String toString()
Overrides:
toString in class Object


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