it.unimi.dsi.fastutil.chars

Class Char2IntMaps.UnmodifiableMap

java.lang.Object

it.unimi.dsi.fastutil.chars.AbstractChar2IntFunction

it.unimi.dsi.fastutil.chars.Char2IntFunctions.UnmodifiableFunction

it.unimi.dsi.fastutil.chars.Char2IntMaps.UnmodifiableMap

All Implemented Interfaces:

Char2IntFunction, Char2IntMap, Function<Character,Integer>, Serializable, Map<Character,Integer>

Direct Known Subclasses:

Char2IntSortedMaps.UnmodifiableSortedMap

Enclosing class:

Char2IntMaps

public static class Char2IntMaps.UnmodifiableMap
extends Char2IntFunctions.UnmodifiableFunction
implements Char2IntMap, Serializable

An unmodifiable wrapper class for maps.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.chars.Char2IntMap

Char2IntMap.Entry, Char2IntMap.FastEntrySet

Method Summary

Modifier and Type	Method and Description
ObjectSet<Char2IntMap.Entry>	char2IntEntrySet() Returns a type-specific set view of the mappings contained in this map.
void	clear() Removes all associations from this function (optional operation).
boolean	containsKey(char 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<Character,Integer>>	entrySet() Returns a set view of the mappings contained in this map.
int	get(char k) Deprecated. Please use the corresponding type-specific method instead.
boolean	isEmpty()
CharSet	keySet() Returns a set view of the keys contained in this map.
Integer	put(Character k, Integer v) Deprecated. Please use the corresponding type-specific method instead.
int	put(char k, int v) Adds a pair to the map.
void	putAll(Map<? extends Character,? extends Integer> m)
int	remove(char k) Deprecated. Please use the corresponding type-specific method instead.
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.chars.AbstractChar2IntFunction

get, remove

Methods inherited from class java.lang.Object

equals, getClass, hashCode, 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, equals, forEach, get, getOrDefault, hashCode, 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<Character,Integer>

Specified by:

size in interface Map<Character,Integer>

Overrides:

size in class Char2IntFunctions.UnmodifiableFunction

Returns:

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

containsKey

public boolean containsKey(char k)

Specified by:

containsKey in interface Char2IntFunction

Overrides:

containsKey in class Char2IntFunctions.UnmodifiableFunction

See Also:

Function.containsKey(Object)

containsValue

public boolean containsValue(int v)

Specified by:

containsValue in interface Char2IntMap

See Also:

Map.containsValue(Object)

defaultReturnValue

public int defaultReturnValue()

Description copied from interface: Char2IntFunction

Gets the default return value.

Specified by:

defaultReturnValue in interface Char2IntFunction

Overrides:

defaultReturnValue in class Char2IntFunctions.UnmodifiableFunction

Returns:

the current default return value.

defaultReturnValue

public void defaultReturnValue(int defRetValue)

Description copied from interface: Char2IntFunction

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 Char2IntFunction

Overrides:

defaultReturnValue in class Char2IntFunctions.UnmodifiableFunction

Parameters:

defRetValue - the new default return value.

See Also:

Char2IntFunction.defaultReturnValue()

put

public int put(char k,
               int v)

Description copied from interface: Char2IntFunction

Adds a pair to the map.

Specified by:

put in interface Char2IntFunction

Overrides:

put in class Char2IntFunctions.UnmodifiableFunction

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 Character,? extends Integer> m)

Specified by:

putAll in interface Map<Character,Integer>

char2IntEntrySet

public ObjectSet<Char2IntMap.Entry> char2IntEntrySet()

Description copied from interface: Char2IntMap

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 Char2IntMap.entrySet() so that it returns an ObjectSet of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).

Specified by:

char2IntEntrySet in interface Char2IntMap

Returns:

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

See Also:

Char2IntMap.entrySet()

keySet

public CharSet keySet()

Description copied from interface: Char2IntMap

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 Char2IntMap

Specified by:

keySet in interface Map<Character,Integer>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public IntCollection values()

Description copied from interface: Char2IntMap

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 Char2IntMap

Specified by:

values in interface Map<Character,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<Character,Integer>

Specified by:

clear in interface Map<Character,Integer>

Overrides:

clear in class Char2IntFunctions.UnmodifiableFunction

See Also:

Map.clear()

toString

public String toString()

Overrides:

toString in class Char2IntFunctions.UnmodifiableFunction

put

@Deprecated
public Integer put(Character k,
                               Integer v)

Deprecated. Please use the corresponding type-specific method instead.

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<Character,Integer>

Specified by:

put in interface Map<Character,Integer>

Overrides:

put in class AbstractChar2IntFunction

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

@Deprecated
public int remove(char k)

Deprecated. Please use the corresponding type-specific method instead.

Removes the mapping with the given key.

Specified by:

remove in interface Char2IntFunction

Overrides:

remove in class Char2IntFunctions.UnmodifiableFunction

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

@Deprecated
public int get(char k)

Deprecated. Please use the corresponding type-specific method instead.

Returns the value to which the given key is mapped.

Specified by:

get in interface Char2IntFunction

Overrides:

get in class Char2IntFunctions.UnmodifiableFunction

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<Character,Integer>

Specified by:

containsKey in interface Map<Character,Integer>

Overrides:

containsKey in class Char2IntFunctions.UnmodifiableFunction

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<Character,Integer>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Character,Integer>

entrySet

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

Description copied from interface: Char2IntMap

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 Char2IntMap

Specified by:

entrySet in interface Map<Character,Integer>

Returns:

a set view of the mappings contained in this map.

See Also:

Map.entrySet()