PersistentRegistryManager.java 文件源码

private <T extends IForgeRegistryEntry<T>> FMLControlledNamespacedRegistry<T> createRegistry(ResourceLocation registryName, Class<T> type, ResourceLocation defaultObjectKey, int minId, int maxId, IForgeRegistry.AddCallback<T> addCallback, IForgeRegistry.ClearCallback<T> clearCallback, IForgeRegistry.CreateCallback<T> createCallback, IForgeRegistry.SubstitutionCallback<T> substitutionCallback)
{
    Set<Class<?>> parents = Sets.newHashSet();
    findSuperTypes(type, parents);
    SetView<Class<?>> overlappedTypes = Sets.intersection(parents, registrySuperTypes.keySet());
    if (!overlappedTypes.isEmpty())
    {
        Class<?> foundType = overlappedTypes.iterator().next();
        FMLLog.severe("Found existing registry of type %1s named %2s, you cannot create a new registry (%3s) with type %4s, as %4s has a parent of that type", foundType, registrySuperTypes.get(foundType), registryName, type);
        throw new IllegalArgumentException("Duplicate registry parent type found - you can only have one registry for a particular super type");
    }
    FMLControlledNamespacedRegistry<T> fmlControlledNamespacedRegistry = new FMLControlledNamespacedRegistry<T>(defaultObjectKey, minId, maxId, type, registries, addCallback, clearCallback, createCallback, substitutionCallback);
    registries.put(registryName, fmlControlledNamespacedRegistry);
    registrySuperTypes.put(type, registryName);
    return getRegistry(registryName, type);
}