it.unimi.dsi.fastutil.objects
Class Reference2CharFunctions.UnmodifiableFunction<K>

java.lang.Object
  it.unimi.dsi.fastutil.objects.AbstractReference2CharFunction<K>
      it.unimi.dsi.fastutil.objects.Reference2CharFunctions.UnmodifiableFunction<K>

All Implemented Interfaces:

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

Direct Known Subclasses:

Reference2CharMaps.UnmodifiableMap

Enclosing class:

Reference2CharFunctions

public static class Reference2CharFunctions.UnmodifiableFunction<K>
extends AbstractReference2CharFunction<K>
implements Serializable

An unmodifiable wrapper class for functions.

See Also:

Serialized Form

Field Summary

static long

serialVersionUID

Method Summary

void	clear() Removes all associations from this function (optional operation).
boolean	containsKey(Object k) Returns true if this function contains a mapping for the specified key.
char	defaultReturnValue() Gets the default return value.
void	defaultReturnValue(char defRetValue) Sets the default return value.
char	getChar(Object k) Returns the value to which the given key is mapped.
char	put(K k, char v) Adds a pair to the map.
char	removeChar(Object 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()

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

get, put, remove

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

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<K,Character>

Returns:

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

containsKey

public boolean containsKey(Object k)

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<K,Character>

Parameters:

k - the key.

Returns:

true if this function associates a value to key.

See Also:

Map.containsKey(Object)

defaultReturnValue

public char defaultReturnValue()

Description copied from interface: Reference2CharFunction

Gets the default return value.

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. 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()

put

public char put(K k,
                char v)

Description copied from interface: Reference2CharFunction

Adds a pair to the map.

Specified by:

put in interface Reference2CharFunction<K>

Overrides:

put in class AbstractReference2CharFunction<K>

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)

clear

public void clear()

Description copied from interface: Function

Removes all associations from this function (optional operation).

Specified by:

clear in interface Function<K,Character>

Overrides:

clear in class AbstractReference2CharFunction<K>

See Also:

Map.clear()

toString

public String toString()

Overrides:

toString in class Object

removeChar

public char removeChar(Object k)

Description copied from interface: Reference2CharFunction

Removes the mapping with the given key.

Specified by:

removeChar in interface Reference2CharFunction<K>

Overrides:

removeChar in class AbstractReference2CharFunction<K>

Returns:

the old value, or the default return value if no value was present for the given key.

See Also:

Function.remove(Object)

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)