it.unimi.dsi.fastutil.objects

Class Reference2CharFunctions.EmptyFunction<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.AbstractReference2CharFunction<K>

it.unimi.dsi.fastutil.objects.Reference2CharFunctions.EmptyFunction<K>

All Implemented Interfaces:

Reference2CharFunction<K>, Serializable, Cloneable, Function<K,Character>, ToIntFunction<K>

Direct Known Subclasses:

Reference2CharMaps.EmptyMap

Enclosing class:

Reference2CharFunctions

public static class Reference2CharFunctions.EmptyFunction<K>
extends AbstractReference2CharFunction<K>
implements Serializable, Cloneable

An immutable class representing an empty type-specific function.

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

See Also:

Serialized Form

Field Summary

Fields inherited from class it.unimi.dsi.fastutil.objects.AbstractReference2CharFunction

defRetValue

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EmptyFunction()

Method Summary

Modifier and Type	Method and Description
void	clear()
Object	clone()
boolean	containsKey(Object k)
char	defaultReturnValue() Gets the default return value.
void	defaultReturnValue(char defRetValue) Sets the default return value (optional operation).
boolean	equals(Object o)
char	getChar(Object k) Returns the value to which the given key is mapped.
int	hashCode()
int	size()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2CharFunction

applyAsInt, get, put, put, remove, removeChar

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

apply

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

EmptyFunction

protected EmptyFunction()

Method Detail

getChar

public char getChar(Object k)

Description copied from interface: Reference2CharFunction

Returns the value to which the given key is mapped.

Specified by:

getChar in interface Reference2CharFunction<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)

containsKey

public boolean containsKey(Object k)

defaultReturnValue

public char defaultReturnValue()

Description copied from interface: Reference2CharFunction

Gets the default return value.

This default implementation just return the default null value of the type (null for objects, 0 for scalars, false for Booleans).

Specified by:

defaultReturnValue in interface Reference2CharFunction<K>

Overrides:

defaultReturnValue in class AbstractReference2CharFunction<K>

Returns:

the current default return value.

defaultReturnValue

public void defaultReturnValue(char defRetValue)

Description copied from interface: Reference2CharFunction

Sets the default return value (optional operation). 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 Reference2CharFunction<K>

Overrides:

defaultReturnValue in class AbstractReference2CharFunction<K>

Parameters:

defRetValue - the new default return value.

See Also:

Reference2CharFunction.defaultReturnValue()

size

public int size()

clear

public void clear()

clone

public Object clone()

Overrides:

clone in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object