Package it.unimi.dsi.fastutil.ints

Class Int2DoubleMaps.UnmodifiableMap

java.lang.Object

it.unimi.dsi.fastutil.ints.AbstractInt2DoubleFunction

it.unimi.dsi.fastutil.ints.Int2DoubleFunctions.UnmodifiableFunction

it.unimi.dsi.fastutil.ints.Int2DoubleMaps.UnmodifiableMap

All Implemented Interfaces:

Function<Integer,Double>, Int2DoubleFunction, Int2DoubleMap, Serializable, Function<Integer,Double>, IntToDoubleFunction, Map<Integer,Double>

Direct Known Subclasses:

Int2DoubleSortedMaps.UnmodifiableSortedMap

Enclosing class:

Int2DoubleMaps

public static class Int2DoubleMaps.UnmodifiableMap
extends Int2DoubleFunctions.UnmodifiableFunction
implements Int2DoubleMap, Serializable

An unmodifiable wrapper class for maps.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.ints.Int2DoubleMap

Int2DoubleMap.Entry, Int2DoubleMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
double	compute(int key, BiFunction<? super Integer,? super Double,? extends Double> remappingFunction)	Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
Double	compute(Integer key, BiFunction<? super Integer,? super Double,? extends Double> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
double	computeIfAbsent(int key, Int2DoubleFunction 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.
double	computeIfAbsent(int key, IntToDoubleFunction 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.
Double	computeIfAbsent(Integer key, Function<? super Integer,? extends Double> mappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
double	computeIfAbsentNullable(int key, IntFunction<? extends Double> 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.
double	computeIfPresent(int key, BiFunction<? super Integer,? super Double,? extends Double> remappingFunction)	If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.
Double	computeIfPresent(Integer key, BiFunction<? super Integer,? super Double,? extends Double> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
boolean	containsValue(double 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<Integer,Double>>	entrySet()	Deprecated. Please use the corresponding type-specific method instead.
boolean	equals(Object o)
void	forEach(BiConsumer<? super Integer,? super Double> action)
double	getOrDefault(int key, double defaultValue)	Returns the value associated by this function to the specified key, or give the specified value if not present.
Double	getOrDefault(Object key, Double defaultValue)	Deprecated. Please use the corresponding type-specific method instead.
int	hashCode()
ObjectSet<Int2DoubleMap.Entry>	int2DoubleEntrySet()	Returns a type-specific set view of the mappings contained in this map.
boolean	isEmpty()
IntSet	keySet()
double	merge(int key, double value, BiFunction<? super Double,? super Double,? extends Double> remappingFunction)	If the specified key is not already associated with a value, associates it with the given value.
Double	merge(Integer key, Double value, BiFunction<? super Double,? super Double,? extends Double> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
void	putAll(Map<? extends Integer,? extends Double> m)
double	putIfAbsent(int key, double 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.
Double	putIfAbsent(Integer key, Double value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	remove(int key, double 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.
double	replace(int key, double value)	Replaces the entry for the specified key only if it is currently mapped to some value.
boolean	replace(int key, double oldValue, double newValue)	Replaces the entry for the specified key only if currently mapped to the specified value.
Double	replace(Integer key, Double value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	replace(Integer key, Double oldValue, Double newValue)	Deprecated. Please use the corresponding type-specific method instead.
void	replaceAll(BiFunction<? super Integer,? super Double,? extends Double> function)
DoubleCollection	values()

Methods inherited from class it.unimi.dsi.fastutil.ints.Int2DoubleFunctions.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.ints.Int2DoubleFunction

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.ints.Int2DoubleMap

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

Method Details

containsValue

public boolean containsValue(double v)

Description copied from interface: Int2DoubleMap

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

Specified by:

containsValue in interface Int2DoubleMap

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 Int2DoubleMap

Specified by:

containsValue in interface Map<Integer,Double>

putAll

public void putAll(Map<? extends Integer,? extends Double> m)

Specified by:

putAll in interface Map<Integer,Double>

int2DoubleEntrySet

public ObjectSet<Int2DoubleMap.Entry> int2DoubleEntrySet()

Description copied from interface: Int2DoubleMap

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:

int2DoubleEntrySet in interface Int2DoubleMap

Returns:

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

See Also:

• Map.entrySet()

entrySet

@Deprecated
public ObjectSet<Map.Entry<Integer,Double>> 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 Int2DoubleMap

Specified by:

entrySet in interface Map<Integer,Double>

Returns:

a set view of the mappings contained in this map.

See Also:

• Map.entrySet()

keySet

public IntSet keySet()

Description copied from interface: Int2DoubleMap

Specified by:

keySet in interface Int2DoubleMap

Specified by:

keySet in interface Map<Integer,Double>

Returns:

a set view of the keys contained in this map.

See Also:

• Map.keySet()

values

public DoubleCollection values()

Description copied from interface: Int2DoubleMap

Specified by:

values in interface Int2DoubleMap

Specified by:

values in interface Map<Integer,Double>

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<Integer,Double>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Integer,Double>

Overrides:

hashCode in class Int2DoubleFunctions.UnmodifiableFunction

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Integer,Double>

Overrides:

equals in class Int2DoubleFunctions.UnmodifiableFunction

getOrDefault

public double getOrDefault(int key,
 double defaultValue)

Description copied from interface: Int2DoubleFunction

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

Specified by:

getOrDefault in interface Int2DoubleFunction

Specified by:

getOrDefault in interface Int2DoubleMap

Overrides:

getOrDefault in class Int2DoubleFunctions.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 Integer,? super Double> action)

Specified by:

forEach in interface Int2DoubleMap

Specified by:

forEach in interface Map<Integer,Double>

replaceAll

public void replaceAll(BiFunction<? super Integer,? super Double,? extends Double> function)

Specified by:

replaceAll in interface Map<Integer,Double>

putIfAbsent

public double putIfAbsent(int key,
 double value)

Description copied from interface: Int2DoubleMap

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 Int2DoubleMap

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(int key,
 double value)

Description copied from interface: Int2DoubleMap

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

Specified by:

remove in interface Int2DoubleMap

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 double replace(int key,
 double value)

Description copied from interface: Int2DoubleMap

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

Specified by:

replace in interface Int2DoubleMap

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(int key,
 double oldValue,
 double newValue)

Description copied from interface: Int2DoubleMap

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

Specified by:

replace in interface Int2DoubleMap

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 double computeIfAbsent(int key,
 IntToDoubleFunction mappingFunction)

Description copied from interface: Int2DoubleMap

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 Int2DoubleMap

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 double computeIfAbsentNullable(int key,
 IntFunction<? extends Double> mappingFunction)

Description copied from interface: Int2DoubleMap

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 Int2DoubleMap

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 double computeIfAbsent(int key,
 Int2DoubleFunction mappingFunction)

Description copied from interface: Int2DoubleMap

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 Int2DoubleMap

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 double computeIfPresent(int key,
 BiFunction<? super Integer,? super Double,? extends Double> remappingFunction)

Description copied from interface: Int2DoubleMap

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 Int2DoubleMap

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 double compute(int key,
 BiFunction<? super Integer,? super Double,? extends Double> remappingFunction)

Description copied from interface: Int2DoubleMap

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 Int2DoubleMap

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 double merge(int key,
 double value,
 BiFunction<? super Double,? super Double,? extends Double> remappingFunction)

Description copied from interface: Int2DoubleMap

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 Int2DoubleMap

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 Double getOrDefault(Object key,
 Double 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<Integer,Double>

Specified by:

getOrDefault in interface Int2DoubleFunction

Specified by:

getOrDefault in interface Int2DoubleMap

Specified by:

getOrDefault in interface Map<Integer,Double>

Overrides:

getOrDefault in class Int2DoubleFunctions.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 Int2DoubleMap

Specified by:

remove in interface Map<Integer,Double>

replace

@Deprecated
public Double replace(Integer key,
 Double 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 Int2DoubleMap

Specified by:

replace in interface Map<Integer,Double>

replace

@Deprecated
public boolean replace(Integer key,
 Double oldValue,
 Double 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 Int2DoubleMap

Specified by:

replace in interface Map<Integer,Double>

putIfAbsent

@Deprecated
public Double putIfAbsent(Integer key,
 Double 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 Int2DoubleMap

Specified by:

putIfAbsent in interface Map<Integer,Double>

computeIfAbsent

@Deprecated
public Double computeIfAbsent(Integer key,
 Function<? super Integer,? extends Double> 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 Int2DoubleMap

Specified by:

computeIfAbsent in interface Map<Integer,Double>

computeIfPresent

@Deprecated
public Double computeIfPresent(Integer key,
 BiFunction<? super Integer,? super Double,? extends Double> 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 Int2DoubleMap

Specified by:

computeIfPresent in interface Map<Integer,Double>

compute

@Deprecated
public Double compute(Integer key,
 BiFunction<? super Integer,? super Double,? extends Double> 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 Int2DoubleMap

Specified by:

compute in interface Map<Integer,Double>

merge

@Deprecated
public Double merge(Integer key,
 Double value,
 BiFunction<? super Double,? super Double,? extends Double> 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 Int2DoubleMap

Specified by:

merge in interface Map<Integer,Double>