it.unimi.dsi.fastutil.ints

Class Int2IntMaps.SynchronizedMap

java.lang.Object

it.unimi.dsi.fastutil.ints.AbstractInt2IntFunction

it.unimi.dsi.fastutil.ints.Int2IntFunctions.SynchronizedFunction

it.unimi.dsi.fastutil.ints.Int2IntMaps.SynchronizedMap

All Implemented Interfaces:

Function<Integer,Integer>, Int2IntFunction, Int2IntMap, Serializable, Map<Integer,Integer>

Direct Known Subclasses:

Int2IntSortedMaps.SynchronizedSortedMap

Enclosing class:

Int2IntMaps

public static class Int2IntMaps.SynchronizedMap
extends Int2IntFunctions.SynchronizedFunction
implements Int2IntMap, Serializable

A synchronized wrapper class for maps.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.ints.Int2IntMap

Int2IntMap.Entry, Int2IntMap.FastEntrySet

Method Summary

Modifier and Type	Method and Description
void	clear() Removes all associations from this function (optional operation).
boolean	containsKey(int k)
boolean	containsKey(Object ok) Returns true if this function contains a mapping for the specified key.
boolean	containsValue(int v)
boolean	containsValue(Object ov)
int	defaultReturnValue() Gets the default return value.
void	defaultReturnValue(int defRetValue) Sets the default return value.
ObjectSet<Map.Entry<Integer,Integer>>	entrySet() Returns a set view of the mappings contained in this map.
boolean	equals(Object o)
int	get(int k) Returns the value to which the given key is mapped.
int	hashCode()
ObjectSet<Int2IntMap.Entry>	int2IntEntrySet() 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.
Integer	put(Integer k, Integer v) Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
int	put(int k, int v) Adds a pair to the map.
void	putAll(Map<? extends Integer,? extends Integer> m)
int	remove(int 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()
IntCollection	values() Returns a set view of the values contained in this map.

Methods inherited from class it.unimi.dsi.fastutil.ints.Int2IntFunctions.SynchronizedFunction

get, remove

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

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

get, remove

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, get, getOrDefault, merge, putIfAbsent, remove, remove, replace, replace, replaceAll

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<Integer,Integer>

Specified by:

size in interface Map<Integer,Integer>

Overrides:

size in class Int2IntFunctions.SynchronizedFunction

Returns:

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

containsKey

public boolean containsKey(int k)

Specified by:

containsKey in interface Int2IntFunction

Overrides:

containsKey in class Int2IntFunctions.SynchronizedFunction

See Also:

Function.containsKey(Object)

containsValue

public boolean containsValue(int v)

Specified by:

containsValue in interface Int2IntMap

See Also:

Map.containsValue(Object)

defaultReturnValue

public int defaultReturnValue()

Description copied from interface: Int2IntFunction

Gets the default return value.

Specified by:

defaultReturnValue in interface Int2IntFunction

Overrides:

defaultReturnValue in class Int2IntFunctions.SynchronizedFunction

Returns:

the current default return value.

defaultReturnValue

public void defaultReturnValue(int defRetValue)

Description copied from interface: Int2IntFunction

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 Int2IntFunction

Overrides:

defaultReturnValue in class Int2IntFunctions.SynchronizedFunction

Parameters:

defRetValue - the new default return value.

See Also:

Int2IntFunction.defaultReturnValue()

put

public int put(int k,
               int v)

Description copied from interface: Int2IntFunction

Adds a pair to the map.

Specified by:

put in interface Int2IntFunction

Overrides:

put in class Int2IntFunctions.SynchronizedFunction

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 Integer,? extends Integer> m)

Specified by:

putAll in interface Map<Integer,Integer>

int2IntEntrySet

public ObjectSet<Int2IntMap.Entry> int2IntEntrySet()

Description copied from interface: Int2IntMap

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 Int2IntMap.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:

int2IntEntrySet in interface Int2IntMap

Returns:

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

See Also:

Int2IntMap.entrySet()

keySet

public IntSet keySet()

Description copied from interface: Int2IntMap

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 Int2IntMap

Specified by:

keySet in interface Map<Integer,Integer>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public IntCollection values()

Description copied from interface: Int2IntMap

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 Int2IntMap

Specified by:

values in interface Map<Integer,Integer>

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<Integer,Integer>

Specified by:

clear in interface Map<Integer,Integer>

Overrides:

clear in class Int2IntFunctions.SynchronizedFunction

See Also:

Map.clear()

toString

public String toString()

Overrides:

toString in class Int2IntFunctions.SynchronizedFunction

put

public Integer put(Integer k,
                   Integer v)

Description copied from class: AbstractInt2IntFunction

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<Integer,Integer>

Specified by:

put in interface Map<Integer,Integer>

Overrides:

put in class Int2IntFunctions.SynchronizedFunction

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)

remove

public int remove(int k)

Description copied from interface: Int2IntFunction

Removes the mapping with the given key.

Specified by:

remove in interface Int2IntFunction

Overrides:

remove in class Int2IntFunctions.SynchronizedFunction

Parameters:

k - the key.

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 int get(int k)

Description copied from interface: Int2IntFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Int2IntFunction

Overrides:

get in class Int2IntFunctions.SynchronizedFunction

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<Integer,Integer>

Specified by:

containsKey in interface Map<Integer,Integer>

Overrides:

containsKey in class Int2IntFunctions.SynchronizedFunction

Parameters:

ok - the key.

Returns:

true if this function associates a value to key.

See Also:

Map.containsKey(Object)

containsValue

public boolean containsValue(Object ov)

Specified by:

containsValue in interface Map<Integer,Integer>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Integer,Integer>

entrySet

public ObjectSet<Map.Entry<Integer,Integer>> entrySet()

Description copied from interface: Int2IntMap

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 Int2IntMap

Specified by:

entrySet in interface Map<Integer,Integer>

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,Integer>

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Integer,Integer>

Overrides:

equals in class Object