Package it.unimi.dsi.fastutil.longs

Class Long2FloatMaps.UnmodifiableMap

java.lang.Object

it.unimi.dsi.fastutil.longs.AbstractLong2FloatFunction

it.unimi.dsi.fastutil.longs.Long2FloatFunctions.UnmodifiableFunction

it.unimi.dsi.fastutil.longs.Long2FloatMaps.UnmodifiableMap

All Implemented Interfaces:

Function<Long,Float>, Long2FloatFunction, Long2FloatMap, Serializable, Function<Long,Float>, LongToDoubleFunction, Map<Long,Float>

Direct Known Subclasses:

Long2FloatSortedMaps.UnmodifiableSortedMap

Enclosing class:

Long2FloatMaps

public static class Long2FloatMaps.UnmodifiableMap
extends Long2FloatFunctions.UnmodifiableFunction
implements Long2FloatMap, Serializable

An unmodifiable wrapper class for maps.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.longs.Long2FloatMap

Long2FloatMap.Entry, Long2FloatMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
float	compute(long key, BiFunction<? super Long,? super Float,? extends Float> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Float	compute(Long key, BiFunction<? super Long,? super Float,? extends Float> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
float	computeIfAbsent(long key, Long2FloatFunction mappingFunction)	If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.
float	computeIfAbsent(long key, LongToDoubleFunction mappingFunction)	If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.
Float	computeIfAbsent(Long key, Function<? super Long,? extends Float> mappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
float	computeIfAbsentNullable(long key, LongFunction<? extends Float> mappingFunction)	If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map unless it is null.
float	computeIfPresent(long key, BiFunction<? super Long,? super Float,? extends Float> remappingFunction)	If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.
Float	computeIfPresent(Long key, BiFunction<? super Long,? super Float,? extends Float> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
boolean	containsValue(float 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.
ObjectSet<Map.Entry<Long,Float>>	entrySet()	Deprecated. Please use the corresponding type-specific method instead.
boolean	equals(Object o)
void	forEach(BiConsumer<? super Long,? super Float> action)
float	getOrDefault(long key, float defaultValue)	Returns the value associated by this function to the specified key, or give the specified value if not present.
Float	getOrDefault(Object key, Float defaultValue)	Deprecated. Please use the corresponding type-specific method instead.
int	hashCode()
boolean	isEmpty()
LongSet	keySet()
ObjectSet<Long2FloatMap.Entry>	long2FloatEntrySet()	Returns a type-specific set view of the mappings contained in this map.
float	merge(long key, float value, BiFunction<? super Float,? super Float,? extends Float> remappingFunction)	If the specified key is not already associated with a value, associates it with the given value.
Float	merge(Long key, Float value, BiFunction<? super Float,? super Float,? extends Float> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
void	putAll(Map<? extends Long,? extends Float> m)
float	putIfAbsent(long key, float value)	If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.
Float	putIfAbsent(Long key, Float value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	remove(long key, float value)	Removes the entry for the specified key only if it is currently mapped to the specified value.
boolean	remove(Object key, Object value)	Deprecated. Please use the corresponding type-specific method instead.
float	replace(long key, float value)	Replaces the entry for the specified key only if it is currently mapped to some value.
boolean	replace(long key, float oldValue, float newValue)	Replaces the entry for the specified key only if currently mapped to the specified value.
Float	replace(Long key, Float value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	replace(Long key, Float oldValue, Float newValue)	Deprecated. Please use the corresponding type-specific method instead.
void	replaceAll(BiFunction<? super Long,? super Float,? extends Float> function)
FloatCollection	values()

Methods inherited from class it.unimi.dsi.fastutil.longs.Long2FloatFunctions.UnmodifiableFunction

clear, containsKey, defaultReturnValue, defaultReturnValue, get, get, put, put, remove, remove, size, toString

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 it.unimi.dsi.fastutil.longs.Long2FloatFunction

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.longs.Long2FloatMap

clear, computeIfAbsentPartial, containsKey, containsKey, defaultReturnValue, defaultReturnValue, get, mergeFloat, mergeFloat, put, remove, size

Method Details

containsValue

public boolean containsValue(float v)

Description copied from interface: Long2FloatMap

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

Specified by:

containsValue in interface Long2FloatMap

See Also:

• Map.containsValue(Object)

containsValue

@Deprecated
public boolean containsValue(Object ov)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

containsValue in interface Long2FloatMap

Specified by:

containsValue in interface Map<Long,Float>

putAll

public void putAll(Map<? extends Long,? extends Float> m)

Specified by:

putAll in interface Map<Long,Float>

long2FloatEntrySet

public ObjectSet<Long2FloatMap.Entry> long2FloatEntrySet()

Description copied from interface: Long2FloatMap

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:

long2FloatEntrySet in interface Long2FloatMap

Returns:

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

See Also:

• Map.entrySet()

entrySet

@Deprecated
public ObjectSet<Map.Entry<Long,Float>> entrySet()

Deprecated.

Please use the corresponding type-specific method instead.

Returns a set view of the mappings contained in this map.

Specified by:

entrySet in interface Long2FloatMap

Specified by:

entrySet in interface Map<Long,Float>

Returns:

a set view of the mappings contained in this map.

See Also:

• Map.entrySet()

keySet

public LongSet keySet()

Description copied from interface: Long2FloatMap

Specified by:

keySet in interface Long2FloatMap

Specified by:

keySet in interface Map<Long,Float>

Returns:

a set view of the keys contained in this map.

See Also:

• Map.keySet()

values

public FloatCollection values()

Description copied from interface: Long2FloatMap

Specified by:

values in interface Long2FloatMap

Specified by:

values in interface Map<Long,Float>

Returns:

a set view of the values contained in this map.

See Also:

• Map.values()

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Long,Float>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Long,Float>

Overrides:

hashCode in class Long2FloatFunctions.UnmodifiableFunction

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Long,Float>

Overrides:

equals in class Long2FloatFunctions.UnmodifiableFunction

getOrDefault

public float getOrDefault(long key,
 float defaultValue)

Description copied from interface: Long2FloatFunction

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

Specified by:

getOrDefault in interface Long2FloatFunction

Specified by:

getOrDefault in interface Long2FloatMap

Overrides:

getOrDefault in class Long2FloatFunctions.UnmodifiableFunction

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(BiConsumer<? super Long,? super Float> action)

Specified by:

forEach in interface Long2FloatMap

Specified by:

forEach in interface Map<Long,Float>

replaceAll

public void replaceAll(BiFunction<? super Long,? super Float,? extends Float> function)

Specified by:

replaceAll in interface Map<Long,Float>

putIfAbsent

public float putIfAbsent(long key,
 float value)

Description copied from interface: Long2FloatMap

If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.

Specified by:

putIfAbsent in interface Long2FloatMap

Parameters:

key - key with which the specified value is to be associated.

value - value to be associated with the specified key.

Returns:

the previous value associated with the specified key, or the default return value if there was no mapping for the key.

See Also:

• Map.putIfAbsent(Object, Object)

remove

public boolean remove(long key,
 float value)

Description copied from interface: Long2FloatMap

Removes the entry for the specified key only if it is currently mapped to the specified value.

Specified by:

remove in interface Long2FloatMap

Parameters:

key - key with which the specified value is associated.

value - value expected to be associated with the specified key.

Returns:

true if the value was removed.

See Also:

• Map.remove(Object, Object)

replace

public float replace(long key,
 float value)

Description copied from interface: Long2FloatMap

Replaces the entry for the specified key only if it is currently mapped to some value.

Specified by:

replace in interface Long2FloatMap

Parameters:

key - key with which the specified value is associated.

value - value to be associated with the specified key.

Returns:

the previous value associated with the specified key, or the default return value if there was no mapping for the key.

See Also:

• Map.replace(Object, Object)

replace

public boolean replace(long key,
 float oldValue,
 float newValue)

Description copied from interface: Long2FloatMap

Replaces the entry for the specified key only if currently mapped to the specified value.

Specified by:

replace in interface Long2FloatMap

Parameters:

key - key with which the specified value is associated.

oldValue - value expected to be associated with the specified key.

newValue - value to be associated with the specified key.

Returns:

true if the value was replaced.

See Also:

• Map.replace(Object, Object, Object)

computeIfAbsent

public float computeIfAbsent(long key,
 LongToDoubleFunction mappingFunction)

Description copied from interface: Long2FloatMap

If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.

Note that contrarily to the default computeIfAbsent(), it is not possible to not add a value for a given key, since the mappingFunction cannot return null. If such a behavior is needed, please use the corresponding nullable version.

Specified by:

computeIfAbsent in interface Long2FloatMap

Parameters:

key - key with which the specified value is to be associated.

mappingFunction - the function to compute a value.

Returns:

the current (existing or computed) value associated with the specified key.

See Also:

• Map.computeIfAbsent(Object, java.util.function.Function)

computeIfAbsentNullable

public float computeIfAbsentNullable(long key,
 LongFunction<? extends Float> mappingFunction)

Description copied from interface: Long2FloatMap

If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map unless it is null.

Note that this version of computeIfAbsent() should be used only if you plan to return null in the mapping function.

Specified by:

computeIfAbsentNullable in interface Long2FloatMap

Parameters:

key - key with which the specified value is to be associated.

mappingFunction - the function to compute a value.

Returns:

the current (existing or computed) value associated with the specified key, or the default return value if the computed value is null.

See Also:

• Map.computeIfAbsent(Object, java.util.function.Function)

computeIfAbsent

public float computeIfAbsent(long key,
 Long2FloatFunction mappingFunction)

Description copied from interface: Long2FloatMap

If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.

This version of computeIfAbsent() uses a type-specific version of fastutil's Function. Since Function has a containsKey() method, it is possible to avoid adding a key by having containsKey() return false for that key.

Specified by:

computeIfAbsent in interface Long2FloatMap

Parameters:

key - key with which the specified value is to be associated.

mappingFunction - the function to compute a value.

Returns:

the current (existing or computed) value associated with the specified key.

See Also:

• Map.computeIfAbsent(Object, java.util.function.Function)

computeIfPresent

public float computeIfPresent(long key,
 BiFunction<? super Long,? super Float,? extends Float> remappingFunction)

Description copied from interface: Long2FloatMap

If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.

Specified by:

computeIfPresent in interface Long2FloatMap

Parameters:

key - key with which the specified value is to be associated.

remappingFunction - the function to compute a value.

Returns:

the new value associated with the specified key, or the default return value if none.

See Also:

• Map.computeIfPresent(Object, java.util.function.BiFunction)

compute

public float compute(long key,
 BiFunction<? super Long,? super Float,? extends Float> remappingFunction)

Description copied from interface: Long2FloatMap

Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).

If the function returns null, the mapping is removed (or remains absent if initially absent). If the function itself throws an (unchecked) exception, the exception is rethrown, and the current mapping is left unchanged.

Specified by:

compute in interface Long2FloatMap

Parameters:

key - key with which the specified value is to be associated.

remappingFunction - the function to compute a value.

Returns:

the new value associated with the specified key, or the default return value if none.

See Also:

• Map.compute(Object, java.util.function.BiFunction)

merge

public float merge(long key,
 float value,
 BiFunction<? super Float,? super Float,? extends Float> remappingFunction)

Description copied from interface: Long2FloatMap

If the specified key is not already associated with a value, associates it with the given value. Otherwise, replaces the associated value with the results of the given remapping function, or removes if the result is null.

Specified by:

merge in interface Long2FloatMap

Parameters:

key - key with which the resulting value is to be associated.

value - the value to be merged with the existing value associated with the key or, if no existing value is associated with the key, to be associated with the key.

remappingFunction - the function to recompute a value if present.

Returns:

the new value associated with the specified key, or the default return value if no value is associated with the key.

See Also:

• Map.merge(Object, Object, java.util.function.BiFunction)

getOrDefault

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

Deprecated.

Please use the corresponding type-specific method instead.

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<Long,Float>

Specified by:

getOrDefault in interface Long2FloatFunction

Specified by:

getOrDefault in interface Long2FloatMap

Specified by:

getOrDefault in interface Map<Long,Float>

Overrides:

getOrDefault in class Long2FloatFunctions.UnmodifiableFunction

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)

remove

@Deprecated
public boolean remove(Object key,
 Object value)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

remove in interface Long2FloatMap

Specified by:

remove in interface Map<Long,Float>

replace

@Deprecated
public Float replace(Long key,
 Float value)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

replace in interface Long2FloatMap

Specified by:

replace in interface Map<Long,Float>

replace

@Deprecated
public boolean replace(Long key,
 Float oldValue,
 Float newValue)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

replace in interface Long2FloatMap

Specified by:

replace in interface Map<Long,Float>

putIfAbsent

@Deprecated
public Float putIfAbsent(Long key,
 Float value)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

putIfAbsent in interface Long2FloatMap

Specified by:

putIfAbsent in interface Map<Long,Float>

computeIfAbsent

@Deprecated
public Float computeIfAbsent(Long key,
 Function<? super Long,? extends Float> mappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

computeIfAbsent in interface Long2FloatMap

Specified by:

computeIfAbsent in interface Map<Long,Float>

computeIfPresent

@Deprecated
public Float computeIfPresent(Long key,
 BiFunction<? super Long,? super Float,? extends Float> remappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

computeIfPresent in interface Long2FloatMap

Specified by:

computeIfPresent in interface Map<Long,Float>

compute

@Deprecated
public Float compute(Long key,
 BiFunction<? super Long,? super Float,? extends Float> remappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

compute in interface Long2FloatMap

Specified by:

compute in interface Map<Long,Float>

merge

@Deprecated
public Float merge(Long key,
 Float value,
 BiFunction<? super Float,? super Float,? extends Float> remappingFunction)

Deprecated.

Please use the corresponding type-specific method instead.

This default implementation just delegates to the corresponding Map method.

Specified by:

merge in interface Long2FloatMap

Specified by:

merge in interface Map<Long,Float>