RegistryHolder (SpongeAPI 8.1.0 API)

All Known Subinterfaces:

Client, ClientWorld, Engine, Game, LocalServer, Server, ServerWorld, World<W,L>
```
public interface RegistryHolder
```
A holder of registries.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`<T> Optional<Registry<T>>`	`findRegistry(RegistryType<T> type)`	Gets the `Registry` by a `type`, if found.
`<T> Registry<T>`	`registry(RegistryType<T> type)`	Gets the `Registry` by a `key`.
`Stream<Registry<?>>`	`streamRegistries(ResourceKey root)`	Gets a `Stream` of the `registries` in this holder within a root.

- Method Detail
  - registry
```
<T> Registry<T> registry(RegistryType<T> type)
```
    Gets the Registry by a key.
    Great care needs to be made in calling this method with any uncertainty as to if the key will exist in the holder. Should the key lack a value, a ValueNotFoundException will be thrown. Therefore, it is advised to call findRegistry(RegistryType) instead.
    
    Type Parameters:
    
    T - The type
    
    Parameters:
    
    type - The type
    
    Returns:
    
    The registry
  - findRegistry
```
<T> Optional<Registry<T>> findRegistry(RegistryType<T> type)
```
    Gets the Registry by a type, if found.
    
    Type Parameters:
    
    T - The type
    
    Parameters:
    
    type - The type
    
    Returns:
    
    The registry or Optional.empty()
  - streamRegistries
```
Stream<Registry<?>> streamRegistries(ResourceKey root)
```
    Gets a Stream of the registries in this holder within a root.
    
    Parameters:
    
    root - The root to stream registries of
    
    Returns:
    
    The stream