Package org.geysermc.geyser.item.hashing

Interface MapBuilder<Type>

Type Parameters:

Type - the type to encode.

All Superinterfaces:

Function<MapHasher<Type>,MapHasher<Type>>, UnaryOperator<MapHasher<Type>>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface MapBuilder<Type>
extends UnaryOperator<MapHasher<Type>>

MapBuilders can be used to define map-like structures to encode a MapBuilder using a MapHasher.

Method Summary

Modifier and Type	Method	Description
default <Casted> MapBuilder<Casted>	cast()	Casts this map builder to a MapBuilder.
static <Type, Dispatched> MapBuilder<Dispatched>	dispatch(String typeKey, MinecraftHasher<Type> typeHasher, Function<Dispatched,Type> typeExtractor, Function<Type,MapBuilder<Dispatched>> mapDispatch)	Creates a map builder that dispatches a MapBuilder from a MapBuilder using typeExtractor, puts this as the typeKey key in the map using the given typeHasher, and uses a MapBuilder provided by mapDispatch to build the rest of the map.
static <Type, Dispatched> MapBuilder<Dispatched>	dispatch(MinecraftHasher<Type> typeHasher, Function<Dispatched,Type> typeExtractor, Function<Type,MapBuilder<Dispatched>> hashDispatch)	Delegates to dispatch(String, MinecraftHasher, Function, Function), uses "type" as the typeKey.
static <Type> Function<org.cloudburstmc.nbt.NbtMap,MapBuilder<Type>>	inlineNbtMap()	Returns a function that creates a map builder from an NBT map.
static <Type> MapBuilder<Type>	unit()	Returns a map builder that doesn't contain anything.

Methods inherited from interface java.util.function.Function

andThen, apply, compose

Method Details

cast

default <Casted> MapBuilder<Casted> cast()

Casts this map builder to a MapBuilder. This cast is done unsafely, only use this if you are sure the object being encoded is of the type being cast to!

Type Parameters:

Casted - the type to cast to.

unit

static <Type> MapBuilder<Type> unit()

Returns a map builder that doesn't contain anything.

Type Parameters:

Type - the type to encode.

dispatch

static <Type,
Dispatched> MapBuilder<Dispatched> dispatch(MinecraftHasher<Type> typeHasher,
 Function<Dispatched,Type> typeExtractor,
 Function<Type,MapBuilder<Dispatched>> hashDispatch)

Delegates to dispatch(String, MinecraftHasher, Function, Function), uses "type" as the typeKey.

See Also:

• dispatch(String, MinecraftHasher, Function, Function)

dispatch

static <Type,
Dispatched> MapBuilder<Dispatched> dispatch(String typeKey,
 MinecraftHasher<Type> typeHasher,
 Function<Dispatched,Type> typeExtractor,
 Function<Type,MapBuilder<Dispatched>> mapDispatch)

Creates a map builder that dispatches a MapBuilder from a MapBuilder using typeExtractor, puts this as the typeKey key in the map using the given typeHasher, and uses a MapBuilder provided by mapDispatch to build the rest of the map.

This can be used to create map builders that build an abstract type or interface into a map with different keys depending on the type.

Type Parameters:

Type - the type of the typeKey.

Dispatched - the type of the new map builder.

Parameters:

typeKey - the key to store the MapBuilder in.

typeHasher - the hasher used to encode the MapBuilder.

typeExtractor - the function that extracts a MapBuilder from a MapBuilder.

mapDispatch - the function that provides a MapBuilder based on a MapBuilder.

inlineNbtMap

static <Type>
Function<org.cloudburstmc.nbt.NbtMap,MapBuilder<Type>> inlineNbtMap()

Returns a function that creates a map builder from an NBT map. The builder simply adds all keys from the NBT map.

Can be used with MapHasher.accept(Function, Function) to inline an NBT map into a map builder, together with other keys.

Type Parameters:

Type - the type to encode.