Package it.unimi.dsi.fastutil.floats

Class Float2FloatMaps.EmptyMap

java.lang.Object

it.unimi.dsi.fastutil.floats.AbstractFloat2FloatFunction

it.unimi.dsi.fastutil.floats.Float2FloatFunctions.EmptyFunction

it.unimi.dsi.fastutil.floats.Float2FloatMaps.EmptyMap

All Implemented Interfaces:

Float2FloatFunction, Float2FloatMap, Function<java.lang.Float,java.lang.Float>, java.io.Serializable, java.lang.Cloneable, java.util.function.DoubleUnaryOperator, java.util.function.Function<java.lang.Float,java.lang.Float>, java.util.Map<java.lang.Float,java.lang.Float>

Direct Known Subclasses:

Float2FloatSortedMaps.EmptySortedMap

Enclosing class:

Float2FloatMaps

public static class Float2FloatMaps.EmptyMap
extends Float2FloatFunctions.EmptyFunction
implements Float2FloatMap, java.io.Serializable, java.lang.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.floats.Float2FloatMap

Float2FloatMap.Entry, Float2FloatMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
java.lang.Object	clone()
boolean	containsValue(float v)	Returns true if this map maps one or more keys to the specified value.
boolean	containsValue(java.lang.Object ov)	Deprecated. Please use the corresponding type-specific method instead.
boolean	equals(java.lang.Object o)
ObjectSet<Float2FloatMap.Entry>	float2FloatEntrySet()	Returns a type-specific set view of the mappings contained in this map.
void	forEach(java.util.function.BiConsumer<? super java.lang.Float,? super java.lang.Float> consumer)
float	getOrDefault(float key, float defaultValue)	Returns the value associated by this function to the specified key, or give the specified value if not present.
java.lang.Float	getOrDefault(java.lang.Object key, java.lang.Float defaultValue)	Deprecated.
int	hashCode()
boolean	isEmpty()
FloatSet	keySet()
void	putAll(java.util.Map<? extends java.lang.Float,? extends java.lang.Float> m)
java.lang.String	toString()
FloatCollection	values()

Methods inherited from class it.unimi.dsi.fastutil.floats.Float2FloatFunctions.EmptyFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, size

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.DoubleUnaryOperator

andThen, compose

Methods inherited from interface it.unimi.dsi.fastutil.floats.Float2FloatFunction

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

Methods inherited from interface it.unimi.dsi.fastutil.floats.Float2FloatMap

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

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

apply

Methods inherited from interface java.util.Map

replaceAll

Method Detail

containsValue

public boolean containsValue(float v)

Description copied from interface: Float2FloatMap

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

Specified by:

containsValue in interface Float2FloatMap

See Also:

Map.containsValue(Object)

getOrDefault

@Deprecated
public java.lang.Float getOrDefault(java.lang.Object key,
                                    java.lang.Float defaultValue)

Deprecated.

Description copied from interface: Float2FloatMap

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

This default implementation just delegates to the corresponding Map method.

Specified by:

getOrDefault in interface Float2FloatFunction

Specified by:

getOrDefault in interface Float2FloatMap

Specified by:

getOrDefault in interface Function<java.lang.Float,java.lang.Float>

Specified by:

getOrDefault in interface java.util.Map<java.lang.Float,java.lang.Float>

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 float getOrDefault(float key,
                          float defaultValue)

Description copied from interface: Float2FloatFunction

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

Specified by:

getOrDefault in interface Float2FloatFunction

Specified by:

getOrDefault in interface Float2FloatMap

Overrides:

getOrDefault in class Float2FloatFunctions.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)

containsValue

@Deprecated
public boolean containsValue(java.lang.Object ov)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

containsValue in interface Float2FloatMap

Specified by:

containsValue in interface java.util.Map<java.lang.Float,java.lang.Float>

putAll

public void putAll(java.util.Map<? extends java.lang.Float,? extends java.lang.Float> m)

Specified by:

putAll in interface java.util.Map<java.lang.Float,java.lang.Float>

float2FloatEntrySet

public ObjectSet<Float2FloatMap.Entry> float2FloatEntrySet()

Description copied from interface: Float2FloatMap

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:

float2FloatEntrySet in interface Float2FloatMap

Returns:

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

See Also:

Map.entrySet()

keySet

public FloatSet keySet()

Description copied from interface: Float2FloatMap

Specified by:

keySet in interface Float2FloatMap

Specified by:

keySet in interface java.util.Map<java.lang.Float,java.lang.Float>

Returns:

a set view of the keys contained in this map.

See Also:

Map.keySet()

values

public FloatCollection values()

Description copied from interface: Float2FloatMap

Specified by:

values in interface Float2FloatMap

Specified by:

values in interface java.util.Map<java.lang.Float,java.lang.Float>

Returns:

a set view of the values contained in this map.

See Also:

Map.values()

forEach

public void forEach(java.util.function.BiConsumer<? super java.lang.Float,? super java.lang.Float> consumer)

Specified by:

forEach in interface Float2FloatMap

Specified by:

forEach in interface java.util.Map<java.lang.Float,java.lang.Float>

clone

public java.lang.Object clone()

Overrides:

clone in class Float2FloatFunctions.EmptyFunction

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<java.lang.Float,java.lang.Float>

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map<java.lang.Float,java.lang.Float>

Overrides:

hashCode in class Float2FloatFunctions.EmptyFunction

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Map<java.lang.Float,java.lang.Float>

Overrides:

equals in class Float2FloatFunctions.EmptyFunction

toString

public java.lang.String toString()

Overrides:

toString in class Float2FloatFunctions.EmptyFunction