net.minecraft.util.registry

Class RegistryKey<T>

java.lang.Object

net.minecraft.util.registry.RegistryKey<T>

Type Parameters:

T - the type of the value

public class RegistryKey<T>
extends Object

Represents a key for a value in a registry in a context where a root registry is available.

See Also:

Registry.ROOT

Field Summary

Fields

Modifier and Type	Field and Description
private static Map<String,RegistryKey<?>>	INSTANCES A cache of all registry keys ever created.
private Identifier	registry The identifier of the registry in the root registry.
private Identifier	value The identifier of the value in the registry specified by registry.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	RegistryKey(Identifier registry, Identifier value)

Method Summary

Modifier and Type	Method and Description
static <T> Function<Identifier,RegistryKey<T>>	createKeyFactory(RegistryKey<? extends Registry<T>> registry) Creates a function that converts an identifier to a registry key for the registry that registry refers to in the root registry.
Identifier	getValue()
boolean	isOf(RegistryKey<? extends Registry<?>> registry) Returns whether this registry key belongs to the given registry (according to its type, not whether the registry actually contains this key).
private static <T> RegistryKey<T>	of(Identifier registry, Identifier value)
static <T> RegistryKey<T>	of(RegistryKey<? extends Registry<T>> registry, Identifier value) Creates a registry key for a value in a registry with a registry key for the value-holding registry in the root registry and an identifier of the value.
static <T> RegistryKey<Registry<T>>	ofRegistry(Identifier registry) Creates a registry key for a registry in the root registry (registry of all registries) with an identifier for the registry.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

INSTANCES

private static final Map<String,RegistryKey<?>> INSTANCES

A cache of all registry keys ever created.

registry

private final Identifier registry

The identifier of the registry in the root registry.

value

private final Identifier value

The identifier of the value in the registry specified by registry.

Constructor Detail

RegistryKey

private RegistryKey(Identifier registry,
                    Identifier value)

Method Detail

of

public static <T> RegistryKey<T> of(RegistryKey<? extends Registry<T>> registry,
                                    Identifier value)

Creates a registry key for a value in a registry with a registry key for the value-holding registry in the root registry and an identifier of the value.

You can call it like RegistryKey.of(Registry.ITEM_KEY, new Identifier("iron_ingot")) to create a registry key for iron ingot.

Type Parameters:

T - the type of the value

Parameters:

registry - the registry key of the registry in the root registry

value - the identifier of the value

ofRegistry

public static <T> RegistryKey<Registry<T>> ofRegistry(Identifier registry)

Creates a registry key for a registry in the root registry (registry of all registries) with an identifier for the registry.

You can call it like RegistryKey.of(new Identifier("block")) to create a registry key for the block registry.

Type Parameters:

T - the element type of the registry

Parameters:

registry - the identifier of the registry

of

private static <T> RegistryKey<T> of(Identifier registry,
                                     Identifier value)

toString

public String toString()

Overrides:

toString in class Object

isOf

public boolean isOf(RegistryKey<? extends Registry<?>> registry)

Returns whether this registry key belongs to the given registry (according to its type, not whether the registry actually contains this key).

Parameters:

registry - the key of the registry that this registry key should be inside

getValue

public Identifier getValue()

createKeyFactory

public static <T> Function<Identifier,RegistryKey<T>> createKeyFactory(RegistryKey<? extends Registry<T>> registry)

Creates a function that converts an identifier to a registry key for the registry that registry refers to in the root registry.

Parameters:

registry - the reference to the value-holding registry in the root registry