Package it.unimi.dsi.fastutil.ints

Class Int2IntFunctions.PrimitiveFunction

java.lang.Object

it.unimi.dsi.fastutil.ints.Int2IntFunctions.PrimitiveFunction

All Implemented Interfaces:

Function<Integer,Integer>, Int2IntFunction, Function<Integer,Integer>, IntUnaryOperator

Enclosing class:

Int2IntFunctions

public static class Int2IntFunctions.PrimitiveFunction
extends Object
implements Int2IntFunction

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

Method Summary

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

apply, clear, size

Methods inherited from interface it.unimi.dsi.fastutil.ints.Int2IntFunction

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

Methods inherited from interface java.util.function.IntUnaryOperator

andThen, compose

Method Details

containsKey

public boolean containsKey(int key)

Description copied from interface: Int2IntFunction

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 Int2IntFunction

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: Int2IntFunction

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 Function<Integer,Integer>

Specified by:

containsKey in interface Int2IntFunction

Parameters:

key - the key.

Returns:

true if this function associates a value to key.

See Also:

• Map.containsKey(Object)

get

public int get(int key)

Description copied from interface: Int2IntFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Int2IntFunction

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 int getOrDefault(int key,
 int defaultValue)

Description copied from interface: Int2IntFunction

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

Specified by:

getOrDefault in interface Int2IntFunction

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 Integer get(Object key)

Deprecated.

Description copied from interface: Int2IntFunction

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

Specified by:

get in interface Function<Integer,Integer>

Specified by:

get in interface Int2IntFunction

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 Integer getOrDefault(Object key,
 Integer defaultValue)

Deprecated.

Description copied from interface: Int2IntFunction

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,Integer>

Specified by:

getOrDefault in interface Int2IntFunction

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 Integer put(Integer key,
 Integer value)

Deprecated.

Description copied from interface: Int2IntFunction

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

Specified by:

put in interface Function<Integer,Integer>

Specified by:

put in interface Int2IntFunction

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)