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

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

public static class Double2ObjectMaps.UnmodifiableMap<V>
extends Double2ObjectFunctions.UnmodifiableFunction<V>
implements Double2ObjectMap<V>, Serializable

An unmodifiable wrapper class for maps.

See Also:
Serialized Form

Nested Class Summary
 
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
           
protected  Double2ObjectMap<V> map
           
static long serialVersionUID
           
protected  ObjectCollection<V> values
           
 
Fields inherited from class it.unimi.dsi.fastutil.doubles.Double2ObjectFunctions.UnmodifiableFunction
function
 
Fields inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction
defRetValue
 
Constructor Summary
protected Double2ObjectMaps.UnmodifiableMap(Double2ObjectMap<V> m)
           
 
Method Summary
 void clear()
          Removes all associations from this function (optional operation).
 boolean containsKey(double k)
           
 boolean containsKey(Object ok)
          Returns true if this function contains a mapping for the specified key.
 boolean containsValue(Object v)
           
 V defaultReturnValue()
          Gets the default return value.
 void defaultReturnValue(V defRetValue)
          Sets the default return value.
 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.
 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.
 boolean isEmpty()
           
 DoubleSet keySet()
          Returns a set view of the keys contained in this map.
 V put(double k, V v)
          Adds a pair to the map.
 void putAll(Map<? extends Double,? extends V> m)
           
 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()
           
 ObjectCollection<V> values()
          Returns a set view of the values contained in this map.
 
Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ObjectFunction
put
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface it.unimi.dsi.fastutil.Function
put
 
Methods inherited from interface java.util.Map
equals, hashCode, put
 

Field Detail

serialVersionUID

public static final long serialVersionUID
See Also:
Constant Field Values

map

protected final Double2ObjectMap<V> map

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.UnmodifiableMap

protected Double2ObjectMaps.UnmodifiableMap(Double2ObjectMap<V> m)
Method Detail

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,V>
Specified by:
size in interface Map<Double,V>
Overrides:
size in class Double2ObjectFunctions.UnmodifiableFunction<V>
Returns:
the intended number of keys in this function, or -1 if that number is not available.

containsKey

public boolean containsKey(double k)
Specified by:
containsKey in interface Double2ObjectFunction<V>
Overrides:
containsKey in class Double2ObjectFunctions.UnmodifiableFunction<V>
See Also:
Function.containsKey(Object)

containsValue

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

defaultReturnValue

public V defaultReturnValue()
Description copied from interface: Double2ObjectFunction
Gets the default return value.

Specified by:
defaultReturnValue in interface Double2ObjectFunction<V>
Overrides:
defaultReturnValue in class Double2ObjectFunctions.UnmodifiableFunction<V>
Returns:
the current default return value.

defaultReturnValue

public void defaultReturnValue(V defRetValue)
Description copied from interface: Double2ObjectFunction
Sets the default return value. This value must be returned by type-specific versions of get(), put() and remove() to denote that the map does not contain the specified key. It must be 0/false/null by default.

Specified by:
defaultReturnValue in interface Double2ObjectFunction<V>
Overrides:
defaultReturnValue in class Double2ObjectFunctions.UnmodifiableFunction<V>
Parameters:
defRetValue - the new default return value.
See Also:
Double2ObjectFunction.defaultReturnValue()

put

public V put(double k,
             V v)
Description copied from interface: Double2ObjectFunction
Adds a pair to the map.

Specified by:
put in interface Double2ObjectFunction<V>
Overrides:
put in class Double2ObjectFunctions.UnmodifiableFunction<V>
Parameters:
k - the key.
v - the value.
Returns:
the old value, or the default return value if no value was present for the given key.
See Also:
Function.put(Object,Object)

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()

clear

public void clear()
Description copied from interface: Function
Removes all associations from this function (optional operation).

Specified by:
clear in interface Function<Double,V>
Specified by:
clear in interface Map<Double,V>
Overrides:
clear in class Double2ObjectFunctions.UnmodifiableFunction<V>
See Also:
Map.clear()

toString

public String toString()
Overrides:
toString in class Double2ObjectFunctions.UnmodifiableFunction<V>

remove

public V remove(double k)
Description copied from interface: Double2ObjectFunction
Removes the mapping with the given key.

Specified by:
remove in interface Double2ObjectFunction<V>
Overrides:
remove in class Double2ObjectFunctions.UnmodifiableFunction<V>
Returns:
the old value, or the default return value if no value was present for the given key.
See Also:
Function.remove(Object)

get

public V get(double k)
Description copied from interface: Double2ObjectFunction
Returns the value to which the given key is mapped.

Specified by:
get in interface Double2ObjectFunction<V>
Overrides:
get in class Double2ObjectFunctions.UnmodifiableFunction<V>
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)

containsKey

public boolean containsKey(Object ok)
Description copied from interface: Function
Returns true if this function contains a mapping for the specified key.

Note that for some kind of functions (e.g., hashes) this method will always return true.

Specified by:
containsKey in interface Function<Double,V>
Specified by:
containsKey in interface Map<Double,V>
Overrides:
containsKey in class Double2ObjectFunctions.UnmodifiableFunction<V>
Parameters:
ok - the key.
Returns:
true if this function associates a value to key.
See Also:
Map.containsKey(Object)

remove

public V remove(Object k)
Description copied from class: AbstractDouble2ObjectFunction
Delegates to the corresponding type-specific method, taking care of returning 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.

Specified by:
remove in interface Function<Double,V>
Specified by:
remove in interface Map<Double,V>
Overrides:
remove in class Double2ObjectFunctions.UnmodifiableFunction<V>
Returns:
the old value, or null if no value was present for the given key.
See Also:
Map.remove(Object)

get

public V get(Object k)
Description copied from class: AbstractDouble2ObjectFunction
Delegates to the corresponding type-specific method, taking care of returning 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.

Specified by:
get in interface Function<Double,V>
Specified by:
get in interface Map<Double,V>
Overrides:
get in class Double2ObjectFunctions.UnmodifiableFunction<V>
Parameters:
k - the key.
Returns:
the corresponding value, or null if no value was present for the given key.
See Also:
Map.get(Object)

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()


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