Interface DynamicRegistrySetupCallback

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 DynamicRegistrySetupCallback
This event gets triggered before a dynamic registry is being loaded. Therefore, this is the ideal place to register callbacks to dynamic registries. For example, the following code is used to register a callback that gets triggered for any registered Biome: 

DynamicRegistrySetupCallback.EVENT.register(registryView -> {
    registryView.registerEntryAdded(Registries.BIOME, (rawId, id, object) -> {
        // Do something
    });
});
See Also: