Package it.unimi.dsi.fastutil.doubles

Class Double2DoubleMaps.SynchronizedMap

java.lang.Object

it.unimi.dsi.fastutil.doubles.Double2DoubleFunctions.SynchronizedFunction

it.unimi.dsi.fastutil.doubles.Double2DoubleMaps.SynchronizedMap

All Implemented Interfaces:

Double2DoubleFunction, Double2DoubleMap, Function<Double,Double>, Serializable, DoubleUnaryOperator, Function<Double,Double>, Map<Double,Double>

Direct Known Subclasses:

Double2DoubleSortedMaps.SynchronizedSortedMap

Enclosing class:

Double2DoubleMaps

public static class Double2DoubleMaps.SynchronizedMap
extends Double2DoubleFunctions.SynchronizedFunction
implements Double2DoubleMap, Serializable

A synchronized wrapper class for maps.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleMap

Double2DoubleMap.Entry, Double2DoubleMap.FastEntrySet

Method Summary

Modifier and Type	Method	Description
double	compute(double key, BiFunction<? super Double,? 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(Double key, BiFunction<? super Double,? super Double,? extends Double> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
double	computeIfAbsent(double key, Double2DoubleFunction 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(double key, DoubleUnaryOperator 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(Double key, Function<? super Double,? extends Double> mappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
double	computeIfAbsentNullable(double key, DoubleFunction<? 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(double key, BiFunction<? super Double,? 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(Double key, BiFunction<? super Double,? 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<Double2DoubleMap.Entry>	double2DoubleEntrySet()	Returns a type-specific set view of the mappings contained in this map.
ObjectSet<Map.Entry<Double,Double>>	entrySet()	Deprecated. Please use the corresponding type-specific method instead.
boolean	equals(Object o)
void	forEach(BiConsumer<? super Double,? super Double> action)
double	getOrDefault(double 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()
boolean	isEmpty()
DoubleSet	keySet()
double	merge(double 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(Double key, Double value, BiFunction<? super Double,? super Double,? extends Double> remappingFunction)	Deprecated. Please use the corresponding type-specific method instead.
void	putAll(Map<? extends Double,? extends Double> m)
double	putIfAbsent(double 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(Double key, Double value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	remove(double 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(double key, double value)	Replaces the entry for the specified key only if it is currently mapped to some value.
boolean	replace(double key, double oldValue, double newValue)	Replaces the entry for the specified key only if currently mapped to the specified value.
Double	replace(Double key, Double value)	Deprecated. Please use the corresponding type-specific method instead.
boolean	replace(Double key, Double oldValue, Double newValue)	Deprecated. Please use the corresponding type-specific method instead.
void	replaceAll(BiFunction<? super Double,? super Double,? extends Double> function)
DoubleCollection	values()

Methods inherited from class it.unimi.dsi.fastutil.doubles.Double2DoubleFunctions.SynchronizedFunction

apply, applyAsDouble, clear, containsKey, 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.doubles.Double2DoubleFunction

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.doubles.Double2DoubleMap

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

Methods inherited from interface java.util.function.DoubleUnaryOperator

andThen, compose

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

apply

Method Details

containsValue

public boolean containsValue(double v)

Description copied from interface: Double2DoubleMap

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

Specified by:

containsValue in interface Double2DoubleMap

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 Double2DoubleMap

Specified by:

containsValue in interface Map<Double,Double>

putAll

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

Specified by:

putAll in interface Map<Double,Double>

double2DoubleEntrySet

public ObjectSet<Double2DoubleMap.Entry> double2DoubleEntrySet()

Description copied from interface: Double2DoubleMap

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:

double2DoubleEntrySet in interface Double2DoubleMap

Returns:

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

See Also:

• Map.entrySet()

entrySet

@Deprecated
public ObjectSet<Map.Entry<Double,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 Double2DoubleMap

Specified by:

entrySet in interface Map<Double,Double>

Returns:

a set view of the mappings contained in this map.

See Also:

• Map.entrySet()

keySet

public DoubleSet keySet()

Description copied from interface: Double2DoubleMap

Specified by:

keySet in interface Double2DoubleMap

Specified by:

keySet in interface Map<Double,Double>

Returns:

a set view of the keys contained in this map.

See Also:

• Map.keySet()

values

public DoubleCollection values()

Description copied from interface: Double2DoubleMap

Specified by:

values in interface Double2DoubleMap

Specified by:

values in interface Map<Double,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<Double,Double>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<Double,Double>

Overrides:

hashCode in class Double2DoubleFunctions.SynchronizedFunction

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<Double,Double>

Overrides:

equals in class Double2DoubleFunctions.SynchronizedFunction

getOrDefault

public double getOrDefault(double key,
 double defaultValue)

Description copied from interface: Double2DoubleFunction

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

Specified by:

getOrDefault in interface Double2DoubleFunction

Specified by:

getOrDefault in interface Double2DoubleMap

Overrides:

getOrDefault in class Double2DoubleFunctions.SynchronizedFunction

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 Double,? super Double> action)

Specified by:

forEach in interface Double2DoubleMap

Specified by:

forEach in interface Map<Double,Double>

replaceAll

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

Specified by:

replaceAll in interface Map<Double,Double>

putIfAbsent

public double putIfAbsent(double key,
 double value)

Description copied from interface: Double2DoubleMap

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 Double2DoubleMap

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(double key,
 double value)

Description copied from interface: Double2DoubleMap

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

Specified by:

remove in interface Double2DoubleMap

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(double key,
 double value)

Description copied from interface: Double2DoubleMap

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

Specified by:

replace in interface Double2DoubleMap

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(double key,
 double oldValue,
 double newValue)

Description copied from interface: Double2DoubleMap

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

Specified by:

replace in interface Double2DoubleMap

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(double key,
 DoubleUnaryOperator mappingFunction)

Description copied from interface: Double2DoubleMap

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 Double2DoubleMap

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(double key,
 DoubleFunction<? extends Double> mappingFunction)

Description copied from interface: Double2DoubleMap

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 Double2DoubleMap

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(double key,
 Double2DoubleFunction mappingFunction)

Description copied from interface: Double2DoubleMap

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 Double2DoubleMap

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

Description copied from interface: Double2DoubleMap

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 Double2DoubleMap

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

Description copied from interface: Double2DoubleMap

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 Double2DoubleMap

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

Description copied from interface: Double2DoubleMap

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 Double2DoubleMap

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 Double2DoubleFunction

Specified by:

getOrDefault in interface Double2DoubleMap

Specified by:

getOrDefault in interface Function<Double,Double>

Specified by:

getOrDefault in interface Map<Double,Double>

Overrides:

getOrDefault in class Double2DoubleFunctions.SynchronizedFunction

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 Double2DoubleMap

Specified by:

remove in interface Map<Double,Double>

replace

@Deprecated
public Double replace(Double 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 Double2DoubleMap

Specified by:

replace in interface Map<Double,Double>

replace

@Deprecated
public boolean replace(Double 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 Double2DoubleMap

Specified by:

replace in interface Map<Double,Double>

putIfAbsent

@Deprecated
public Double putIfAbsent(Double 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 Double2DoubleMap

Specified by:

putIfAbsent in interface Map<Double,Double>

computeIfAbsent

@Deprecated
public Double computeIfAbsent(Double key,
 Function<? super Double,? 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 Double2DoubleMap

Specified by:

computeIfAbsent in interface Map<Double,Double>

computeIfPresent

@Deprecated
public Double computeIfPresent(Double key,
 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:

computeIfPresent in interface Double2DoubleMap

Specified by:

computeIfPresent in interface Map<Double,Double>

compute

@Deprecated
public Double compute(Double key,
 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:

compute in interface Double2DoubleMap

Specified by:

compute in interface Map<Double,Double>

merge

@Deprecated
public Double merge(Double 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 Double2DoubleMap

Specified by:

merge in interface Map<Double,Double>