Package it.unimi.dsi.fastutil.doubles

Class Double2ReferenceFunctions.PrimitiveFunction<V>

java.lang.Object

it.unimi.dsi.fastutil.doubles.Double2ReferenceFunctions.PrimitiveFunction<V>

All Implemented Interfaces:

Double2ReferenceFunction<V>, Function<Double,V>, DoubleFunction<V>, Function<Double,V>

Enclosing class:

Double2ReferenceFunctions

public static class Double2ReferenceFunctions.PrimitiveFunction<V>
extends Object
implements Double2ReferenceFunction<V>

An adapter for mapping generic total functions to partial primitive functions.

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(double key)	Returns true if this function contains a mapping for the specified key.
boolean	containsKey(Object key)	Deprecated.
V	get(double key)	Returns the value to which the given key is mapped.
V	get(Object key)	Deprecated.
V	getOrDefault(double key, V defaultValue)	Returns the value associated by this function to the specified key, or give the specified value if not present.
V	getOrDefault(Object key, V defaultValue)	Deprecated.
V	put(Double key, V value)	Deprecated.

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unimi.dsi.fastutil.doubles.Double2ReferenceFunction

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

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

apply, clear, size

Methods inherited from interface java.util.function.Function

andThen

Method Details

containsKey

public boolean containsKey(double key)

Description copied from interface: Double2ReferenceFunction

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. In particular, this default implementation always returns true.

Specified by:

containsKey in interface Double2ReferenceFunction<V>

Parameters:

key - the key.

Returns:

true if this function associates a value to key.

See Also:

• Function.containsKey(Object)

containsKey

@Deprecated
public boolean containsKey(Object key)

Deprecated.

Description copied from interface: Double2ReferenceFunction

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. This default implementation, in particular, always return true.

Specified by:

containsKey in interface Double2ReferenceFunction<V>

Specified by:

containsKey in interface Function<Double,V>

Parameters:

key - the key.

Returns:

true if this function associates a value to key.

See Also:

• Map.containsKey(Object)

get

public V get(double key)

Description copied from interface: Double2ReferenceFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Double2ReferenceFunction<V>

Parameters:

key - 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)

getOrDefault

public V getOrDefault(double key,
 V defaultValue)

Description copied from interface: Double2ReferenceFunction

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

Specified by:

getOrDefault in interface Double2ReferenceFunction<V>

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)

get

@Deprecated
public V get(Object key)

Deprecated.

Description copied from interface: Double2ReferenceFunction

Returns the value associated by this function to the specified key.

Specified by:

get in interface Double2ReferenceFunction<V>

Specified by:

get in interface Function<Double,V>

Parameters:

key - the key.

Returns:

the corresponding value, or null if no value was present for the given key.

See Also:

• Map.get(Object)

getOrDefault

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

Deprecated.

Description copied from interface: Double2ReferenceFunction

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

Specified by:

getOrDefault in interface Double2ReferenceFunction<V>

Specified by:

getOrDefault in interface Function<Double,V>

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)

put

@Deprecated
public V put(Double key,
 V value)

Deprecated.

Description copied from interface: Double2ReferenceFunction

Associates the specified value with the specified key in this function (optional operation).

Specified by:

put in interface Double2ReferenceFunction<V>

Specified by:

put in interface Function<Double,V>

Parameters:

key - the key.

value - the value.

Returns:

the old value, or null if no value was present for the given key.

See Also:

• Map.put(Object,Object)