it.unimi.dsi.fastutil.objects

Class Object2DoubleMaps.SynchronizedMap<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.AbstractObject2DoubleFunction<K>

it.unimi.dsi.fastutil.objects.Object2DoubleFunctions.SynchronizedFunction<K>

it.unimi.dsi.fastutil.objects.Object2DoubleMaps.SynchronizedMap<K>

All Implemented Interfaces:

Function<K,Double>, Object2DoubleFunction<K>, Object2DoubleMap<K>, Serializable, Map<K,Double>

Direct Known Subclasses:

Object2DoubleSortedMaps.SynchronizedSortedMap

Enclosing class:

Object2DoubleMaps

public static class Object2DoubleMaps.SynchronizedMap<K>
extends Object2DoubleFunctions.SynchronizedFunction<K>
implements Object2DoubleMap<K>, Serializable

A synchronized wrapper class for maps.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2DoubleMap

Object2DoubleMap.Entry<K>, Object2DoubleMap.FastEntrySet<K>

Field Summary

Fields

Modifier and Type	Field and Description
protected ObjectSet<Object2DoubleMap.Entry<K>>	entries
protected ObjectSet<K>	keys
protected Object2DoubleMap<K>	map
static long	serialVersionUID
protected DoubleCollection	values

Fields inherited from class it.unimi.dsi.fastutil.objects.Object2DoubleFunctions.SynchronizedFunction

function, sync

Fields inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2DoubleFunction

defRetValue

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Object2DoubleMaps.SynchronizedMap(Object2DoubleMap<K> m)
protected	Object2DoubleMaps.SynchronizedMap(Object2DoubleMap<K> m, Object sync)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear() Removes all associations from this function (optional operation).
boolean	containsKey(Object k) Returns true if this function contains a mapping for the specified key.
boolean	containsValue(double v)
boolean	containsValue(Object ov)
double	defaultReturnValue() Gets the default return value.
void	defaultReturnValue(double defRetValue) Sets the default return value.
ObjectSet<Map.Entry<K,Double>>	entrySet() Returns a set view of the mappings contained in this map.
boolean	equals(Object o)
double	getDouble(Object k) Returns the value to which the given key is mapped.
int	hashCode()
boolean	isEmpty()
ObjectSet<K>	keySet() Returns a set view of the keys contained in this map.
ObjectSet<Object2DoubleMap.Entry<K>>	object2DoubleEntrySet() Returns a type-specific set view of the mappings contained in this map.
double	put(K k, double v) Adds a pair to the map.
Double	put(K k, Double v) Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
void	putAll(Map<? extends K,? extends Double> m)
double	removeDouble(Object k) Removes the mapping with the given key.
int	size() Returns the intended number of keys in this function, or -1 if no such number exists.
String	toString()
DoubleCollection	values() Returns a set view of the values contained in this map.

Methods inherited from class it.unimi.dsi.fastutil.objects.Object2DoubleFunctions.SynchronizedFunction

get, remove

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.Function

get, remove

Methods inherited from interface java.util.Map

get, remove

Field Detail

serialVersionUID

public static final long serialVersionUID

See Also:

Constant Field Values

map

protected final Object2DoubleMap<K> map

entries

protected transient volatile ObjectSet<Object2DoubleMap.Entry<K>> entries

keys

protected transient volatile ObjectSet<K> keys

values

protected transient volatile DoubleCollection values

Constructor Detail

Object2DoubleMaps.SynchronizedMap

protected Object2DoubleMaps.SynchronizedMap(Object2DoubleMap<K> m,
                                 Object sync)

Object2DoubleMaps.SynchronizedMap

protected Object2DoubleMaps.SynchronizedMap(Object2DoubleMap<K> 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<K,Double>

Specified by:

size in interface Map<K,Double>

Overrides:

size in class Object2DoubleFunctions.SynchronizedFunction<K>

Returns:

the intended number of keys in this function, or -1 if that number is not available.

containsKey

public boolean containsKey(Object k)

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<K,Double>

Specified by:

containsKey in interface Map<K,Double>

Overrides:

containsKey in class Object2DoubleFunctions.SynchronizedFunction<K>

Parameters:

k - the key.

Returns:

true if this function associates a value to key.

See Also:

Map.containsKey(Object)

containsValue

public boolean containsValue(double v)

Specified by:

containsValue in interface Object2DoubleMap<K>

See Also:

Map.containsValue(Object)

defaultReturnValue

public double defaultReturnValue()

Description copied from interface: Object2DoubleFunction

Gets the default return value.

Specified by:

defaultReturnValue in interface Object2DoubleFunction<K>

Overrides:

defaultReturnValue in class Object2DoubleFunctions.SynchronizedFunction<K>

Returns:

the current default return value.

defaultReturnValue

public void defaultReturnValue(double defRetValue)

Description copied from interface: Object2DoubleFunction

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 Object2DoubleFunction<K>

Overrides:

defaultReturnValue in class Object2DoubleFunctions.SynchronizedFunction<K>

Parameters:

defRetValue - the new default return value.

See Also:

Object2DoubleFunction.defaultReturnValue()

put

public double put(K k,
         double v)

Description copied from interface: Object2DoubleFunction

Adds a pair to the map.

Specified by:

put in interface Object2DoubleFunction<K>

Overrides:

put in class Object2DoubleFunctions.SynchronizedFunction<K>

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 K,? extends Double> m)

Specified by:

putAll in interface Map<K,Double>

object2DoubleEntrySet

public ObjectSet<Object2DoubleMap.Entry<K>> object2DoubleEntrySet()

Description copied from interface: Object2DoubleMap

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 Object2DoubleMap.entrySet() so that it returns an ObjectSet of objects of type Map.Entry (the latter makes it possible to access keys and values with type-specific methods).

Specified by:

object2DoubleEntrySet in interface Object2DoubleMap<K>

Returns:

a type-specific set view of the mappings contained in this map.

See Also:

Object2DoubleMap.entrySet()

keySet

public ObjectSet<K> keySet()

Description copied from interface: Object2DoubleMap

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 Object2DoubleMap<K>

Specified by:

keySet in interface Map<K,Double>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public DoubleCollection values()

Description copied from interface: Object2DoubleMap

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 Object2DoubleMap<K>

Specified by:

values in interface Map<K,Double>

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<K,Double>

Specified by:

clear in interface Map<K,Double>

Overrides:

clear in class Object2DoubleFunctions.SynchronizedFunction<K>

See Also:

Map.clear()

toString

public String toString()

Overrides:

toString in class Object2DoubleFunctions.SynchronizedFunction<K>

put

public Double put(K k,
         Double v)

Description copied from class: AbstractObject2DoubleFunction

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:

put in interface Function<K,Double>

Specified by:

put in interface Map<K,Double>

Overrides:

put in class Object2DoubleFunctions.SynchronizedFunction<K>

Parameters:

k - the key.

v - the value.

Returns:

the old value, or null if no value was present for the given key.

See Also:

Map.put(Object,Object)

containsValue

public boolean containsValue(Object ov)

Specified by:

containsValue in interface Map<K,Double>

removeDouble

public double removeDouble(Object k)

Description copied from interface: Object2DoubleFunction

Removes the mapping with the given key.

Specified by:

removeDouble in interface Object2DoubleFunction<K>

Overrides:

removeDouble in class Object2DoubleFunctions.SynchronizedFunction<K>

Returns:

the old value, or the default return value if no value was present for the given key.

See Also:

Function.remove(Object)

getDouble

public double getDouble(Object k)

Description copied from interface: Object2DoubleFunction

Returns the value to which the given key is mapped.

Specified by:

getDouble in interface Object2DoubleFunction<K>

Overrides:

getDouble in class Object2DoubleFunctions.SynchronizedFunction<K>

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)

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,Double>

entrySet

public ObjectSet<Map.Entry<K,Double>> entrySet()

Description copied from interface: Object2DoubleMap

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 Object2DoubleMap<K>

Specified by:

entrySet in interface Map<K,Double>

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<K,Double>

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<K,Double>

Overrides:

equals in class Object