it.unimi.dsi.fastutil.objects

Class Object2FloatFunctions.UnmodifiableFunction<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.AbstractObject2FloatFunction<K>

it.unimi.dsi.fastutil.objects.Object2FloatFunctions.UnmodifiableFunction<K>

All Implemented Interfaces:

Function<K,Float>, Object2FloatFunction<K>, Serializable

Direct Known Subclasses:

Object2FloatMaps.UnmodifiableMap

Enclosing class:

Object2FloatFunctions

public static class Object2FloatFunctions.UnmodifiableFunction<K>
extends AbstractObject2FloatFunction<K>
implements Serializable

An unmodifiable wrapper class for functions.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
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.
float	defaultReturnValue() Gets the default return value.
void	defaultReturnValue(float defRetValue) Sets the default return value.
float	getFloat(Object k) Returns the value to which the given key is mapped.
float	put(K k, float v) Adds a pair to the map.
float	removeFloat(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.AbstractObject2FloatFunction

get, put, remove

Methods inherited from class java.lang.Object

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

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,Float>

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,Float>

Parameters:

k - the key.

Returns:

true if this function associates a value to key.

See Also:

Map.containsKey(Object)

defaultReturnValue

public float defaultReturnValue()

Description copied from interface: Object2FloatFunction

Gets the default return value.

Specified by:

defaultReturnValue in interface Object2FloatFunction<K>

Overrides:

defaultReturnValue in class AbstractObject2FloatFunction<K>

Returns:

the current default return value.

defaultReturnValue

public void defaultReturnValue(float defRetValue)

Description copied from interface: Object2FloatFunction

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 Object2FloatFunction<K>

Overrides:

defaultReturnValue in class AbstractObject2FloatFunction<K>

Parameters:

defRetValue - the new default return value.

See Also:

Object2FloatFunction.defaultReturnValue()

put

public float put(K k,
                 float v)

Description copied from interface: Object2FloatFunction

Adds a pair to the map.

Specified by:

put in interface Object2FloatFunction<K>

Overrides:

put in class AbstractObject2FloatFunction<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,Float>

Overrides:

clear in class AbstractObject2FloatFunction<K>

See Also:

Map.clear()

toString

public String toString()

Overrides:

toString in class Object

removeFloat

public float removeFloat(Object k)

Description copied from interface: Object2FloatFunction

Removes the mapping with the given key.

Specified by:

removeFloat in interface Object2FloatFunction<K>

Overrides:

removeFloat in class AbstractObject2FloatFunction<K>

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)

getFloat

public float getFloat(Object k)

Description copied from interface: Object2FloatFunction

Returns the value to which the given key is mapped.

Specified by:

getFloat in interface Object2FloatFunction<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)