Package com.couchbase.client.core.util

Interface IntMap<E>

@Internal
public interface IntMap<E>

A read-only map where the keys are non-negative integers.

Method Summary

Modifier and Type	Method	Description
static <E extends Enum<?>> IntMap<E>	from(Class<E> enumClass, Function<E,Integer> keyExtractor)	Returns a new instance where the values are the values of the given enum class, and the associated key is derived by applying the given function to the value.
static <E> IntMap<E>	from(Iterable<E> items, Function<E,Integer> keyExtractor)	Returns a new instance where the values are the values of the given iterable, and the associated key is derived by applying the given function to the value.
static <E> IntMap<E>	from(Map<Integer,E> map)	Returns a new instance from the entries of the given map.
default @Nullable E	get(byte key)	Reinterprets the byte as a positive integer, then returns the value associated with the given integer, or null if not found.
@Nullable E	get(int key)	Returns the value associated with the given integer, or null if not found.
default @Nullable E	get(short key)	Reinterprets the short as a positive integer, then returns the value associated with the given integer, or null if not found.

Method Details

get

@Nullable E get(int key)

Returns the value associated with the given integer, or null if not found.

Parameters:

key - the non-negative integer associated with the value to return

Throws:

IllegalArgumentException - if the given key is negative.

get

default @Nullable E get(short key)

Reinterprets the short as a positive integer, then returns the value associated with the given integer, or null if not found.

Parameters:

key - the short associated with the value to return

get

default @Nullable E get(byte key)

Reinterprets the byte as a positive integer, then returns the value associated with the given integer, or null if not found.

Parameters:

key - the byte associated with the value to return

from

static <E extends Enum<?>> IntMap<E> from(Class<E> enumClass,
 Function<E,Integer> keyExtractor)

Returns a new instance where the values are the values of the given enum class, and the associated key is derived by applying the given function to the value.

Throws:

IllegalArgumentException - if a derived key is negative, null, or not unique

from

static <E> IntMap<E> from(Iterable<E> items,
 Function<E,Integer> keyExtractor)

Returns a new instance where the values are the values of the given iterable, and the associated key is derived by applying the given function to the value.

Throws:

IllegalArgumentException - if a derived key is negative, null, or not unique

from

static <E> IntMap<E> from(Map<Integer,E> map)

Returns a new instance from the entries of the given map.

Throws:

IllegalArgumentException - if the map contains a key that is null or negative.