it.unimi.dsi.fastutil.chars
Class Char2DoubleMaps.UnmodifiableMap

java.lang.Object
  it.unimi.dsi.fastutil.chars.AbstractChar2DoubleFunction
      it.unimi.dsi.fastutil.chars.Char2DoubleFunctions.UnmodifiableFunction
          it.unimi.dsi.fastutil.chars.Char2DoubleMaps.UnmodifiableMap

All Implemented Interfaces:

Char2DoubleFunction, Char2DoubleMap, Function<Character,Double>, Serializable, Map<Character,Double>

Direct Known Subclasses:

Char2DoubleSortedMaps.UnmodifiableSortedMap

Enclosing class:

Char2DoubleMaps

public static class Char2DoubleMaps.UnmodifiableMap
extends Char2DoubleFunctions.UnmodifiableFunction
implements Char2DoubleMap, 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.Char2DoubleMap

Char2DoubleMap.Entry, Char2DoubleMap.FastEntrySet

Field Summary

static long

serialVersionUID

Method Summary

ObjectSet<Char2DoubleMap.Entry>	char2DoubleEntrySet() 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(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<Character,Double>>	entrySet() Returns a set view of the mappings contained in this map.
double	get(char k) Returns the value to which the given key is mapped.
boolean	isEmpty()
CharSet	keySet() Returns a set view of the keys contained in this map.
Double	put(Character k, Double v) Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
double	put(char k, double v) Adds a pair to the map.
void	putAll(Map<? extends Character,? extends Double> m)
double	remove(char 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.chars.AbstractChar2DoubleFunction

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

equals, get, hashCode, remove

Field Detail

serialVersionUID

public static final long serialVersionUID

See Also:

Constant Field Values

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,Double>

Specified by:

size in interface Map<Character,Double>

Overrides:

size in class Char2DoubleFunctions.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 Char2DoubleFunction

Overrides:

containsKey in class Char2DoubleFunctions.UnmodifiableFunction

See Also:

Function.containsKey(Object)

containsValue

public boolean containsValue(double v)

Specified by:

containsValue in interface Char2DoubleMap

See Also:

Map.containsValue(Object)

defaultReturnValue

public double defaultReturnValue()

Description copied from interface: Char2DoubleFunction

Gets the default return value.

Specified by:

defaultReturnValue in interface Char2DoubleFunction

Overrides:

defaultReturnValue in class Char2DoubleFunctions.UnmodifiableFunction

Returns:

the current default return value.

defaultReturnValue

public void defaultReturnValue(double defRetValue)

Description copied from interface: Char2DoubleFunction

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 Char2DoubleFunction

Overrides:

defaultReturnValue in class Char2DoubleFunctions.UnmodifiableFunction

Parameters:

defRetValue - the new default return value.

See Also:

Char2DoubleFunction.defaultReturnValue()

put

public double put(char k,
                  double v)

Description copied from interface: Char2DoubleFunction

Adds a pair to the map.

Specified by:

put in interface Char2DoubleFunction

Overrides:

put in class Char2DoubleFunctions.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 Double> m)

Specified by:

putAll in interface Map<Character,Double>

char2DoubleEntrySet

public ObjectSet<Char2DoubleMap.Entry> char2DoubleEntrySet()

Description copied from interface: Char2DoubleMap

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 Char2DoubleMap.entrySet() so that it returns an ObjectSet of objects of type Char2DoubleMap.Entry (the latter makes it possible to access keys and values with type-specific methods).

Specified by:

char2DoubleEntrySet in interface Char2DoubleMap

Returns:

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

See Also:

Char2DoubleMap.entrySet()

keySet

public CharSet keySet()

Description copied from interface: Char2DoubleMap

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 Char2DoubleMap

Specified by:

keySet in interface Map<Character,Double>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public DoubleCollection values()

Description copied from interface: Char2DoubleMap

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 Char2DoubleMap

Specified by:

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

Specified by:

clear in interface Map<Character,Double>

Overrides:

clear in class Char2DoubleFunctions.UnmodifiableFunction

See Also:

Map.clear()

toString

public String toString()

Overrides:

toString in class Char2DoubleFunctions.UnmodifiableFunction

put

public Double put(Character k,
                  Double v)

Description copied from class: AbstractChar2DoubleFunction

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,Double>

Specified by:

put in interface Map<Character,Double>

Overrides:

put in class AbstractChar2DoubleFunction

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 double remove(char k)

Description copied from interface: Char2DoubleFunction

Removes the mapping with the given key.

Specified by:

remove in interface Char2DoubleFunction

Overrides:

remove in class Char2DoubleFunctions.UnmodifiableFunction

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 double get(char k)

Description copied from interface: Char2DoubleFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Char2DoubleFunction

Overrides:

get in class Char2DoubleFunctions.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,Double>

Specified by:

containsKey in interface Map<Character,Double>

Overrides:

containsKey in class Char2DoubleFunctions.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,Double>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Character,Double>

entrySet

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

Description copied from interface: Char2DoubleMap

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 Char2DoubleMap

Specified by:

entrySet in interface Map<Character,Double>

Returns:

a set view of the mappings contained in this map.

See Also:

Map.entrySet()