Class Short2CharMaps.EmptyMap

java.lang.Object

it.unimi.dsi.fastutil.shorts.AbstractShort2CharFunction

it.unimi.dsi.fastutil.shorts.Short2CharFunctions.EmptyFunction

it.unimi.dsi.fastutil.shorts.Short2CharMaps.EmptyMap

All Implemented Interfaces:

Function<Short, Character>, Short2CharFunction, Short2CharMap, Serializable, Cloneable, Function<Short, Character>, IntUnaryOperator, Map<Short, Character>

Direct Known Subclasses:

Short2CharSortedMaps.EmptySortedMap

Enclosing class:

Short2CharMaps

public static class Short2CharMaps.EmptyMap
extends Short2CharFunctions.EmptyFunction
implements Short2CharMap, Serializable, Cloneable

An immutable class representing an empty type-specific map.

This class may be useful to implement your own in case you subclass a type-specific map.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.shorts.Short2CharMap

Short2CharMap.Entry, Short2CharMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
Object	clone()
boolean	containsValue(char v)	Returns true if this map maps one or more keys to the specified value.
boolean	containsValue(Object ov)	Deprecated. Please use the corresponding type-specific method instead.
boolean	equals(Object o)
void	forEach(ShortCharBiConsumer consumer)	Performs the given action for each entry in this map until all entries have been processed or the action throws an exception.
char	getOrDefault(short key, char defaultValue)	Returns the value associated by this function to the specified key, or give the specified value if not present.
Character	getOrDefault(Object key, Character defaultValue)	Deprecated.
int	hashCode()
boolean	isEmpty()
ShortSet	keySet()
void	putAll(Map<? extends Short, ? extends Character> m)
ObjectSet<Short2CharMap.Entry>	short2CharEntrySet()	Returns a type-specific set view of the mappings contained in this map.
String	toString()
CharCollection	values()

Methods inherited from class it.unimi.dsi.fastutil.shorts.Short2CharFunctions.EmptyFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, size

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

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

apply

Methods inherited from interface java.util.function.IntUnaryOperator

andThen, compose

Methods inherited from interface java.util.Map

replaceAll

Methods inherited from interface it.unimi.dsi.fastutil.shorts.Short2CharFunction

andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get, put, remove

Methods inherited from interface it.unimi.dsi.fastutil.shorts.Short2CharMap

clear, compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsent, computeIfAbsentNullable, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsKey, defaultReturnValue, defaultReturnValue, entrySet, forEach, get, merge, merge, mergeChar, mergeChar, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace, size

Method Details

containsValue

public boolean containsValue(char v)

Description copied from interface: Short2CharMap

Returns true if this map maps one or more keys to the specified value.

Specified by:

containsValue in interface Short2CharMap

See Also:

• Map.containsValue(Object)

getOrDefault

@Deprecated
public Character getOrDefault(Object key,
 Character defaultValue)

Deprecated.

Description copied from interface: Short2CharFunction

Returns the value associated by this function to the specified key, or give the specified value if not present.

Specified by:

getOrDefault in interface Function<Short, Character>

Specified by:

getOrDefault in interface Map<Short, Character>

Specified by:

getOrDefault in interface Short2CharFunction

Specified by:

getOrDefault in interface Short2CharMap

Parameters:

key - the key.

defaultValue - the default value to return if not present.

Returns:

the corresponding value, or defaultValue if no value was present for the given key.

See Also:

• Map.getOrDefault(Object, Object)

getOrDefault

public char getOrDefault(short key,
 char defaultValue)

Description copied from interface: Short2CharFunction

Returns the value associated by this function to the specified key, or give the specified value if not present.

Specified by:

getOrDefault in interface Short2CharFunction

Specified by:

getOrDefault in interface Short2CharMap

Overrides:

getOrDefault in class Short2CharFunctions.EmptyFunction

Parameters:

key - the key.

defaultValue - the value to return if not present.

Returns:

the corresponding value, or defaultValue if no value was present for the given key.

See Also:

• Function.getOrDefault(Object, Object)

forEach

public void forEach(ShortCharBiConsumer consumer)

Description copied from interface: Short2CharMap

Performs the given action for each entry in this map until all entries have been processed or the action throws an exception.

This default implementation just delegates to forEach on the type-specific entry set, taking care of using fastForEach if available.

Specified by:

forEach in interface Short2CharMap

See Also:

• Map.forEach(java.util.function.BiConsumer)

containsValue

@Deprecated
public boolean containsValue(Object ov)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

containsValue in interface Map<Short, Character>

Specified by:

containsValue in interface Short2CharMap

putAll

public void putAll(Map<? extends Short, ? extends Character> m)

Specified by:

putAll in interface Map<Short, Character>

short2CharEntrySet

public ObjectSet<Short2CharMap.Entry> short2CharEntrySet()

Description copied from interface: Short2CharMap

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 Map.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:

short2CharEntrySet in interface Short2CharMap

Returns:

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

See Also:

• Map.entrySet()

keySet

public ShortSet keySet()

Description copied from interface: Short2CharMap

Specified by:

keySet in interface Map<Short, Character>

Specified by:

keySet in interface Short2CharMap

Returns:

a set view of the keys contained in this map.

See Also:

• Map.keySet()

values

public CharCollection values()

Description copied from interface: Short2CharMap

Specified by:

values in interface Map<Short, Character>

Specified by:

values in interface Short2CharMap

Returns:

a set view of the values contained in this map.

See Also:

• Map.values()

clone

public Object clone()

Overrides:

clone in class Short2CharFunctions.EmptyFunction

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Short, Character>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Short, Character>

Overrides:

hashCode in class Short2CharFunctions.EmptyFunction

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Short, Character>

Overrides:

equals in class Short2CharFunctions.EmptyFunction

toString

public String toString()

Overrides:

toString in class Short2CharFunctions.EmptyFunction