Method loadItemData

src/main/java/net/minecraft/world/World.java:3613–3616

Loads an existing MapDataBase corresponding to the given String id from disk using the MapStorage, instantiating the given Class, or returns null if none such file exists. args: Class to instantiate, String dataid

(Class <? extends WorldSavedData > clazz, String dataID)

     * the given Class, or returns null if none such file exists. args: Class to instantiate, String dataid
     */
    public WorldSavedData loadItemData(Class <? extends WorldSavedData > clazz, String dataID)
    {
        return this.mapStorage.loadData(clazz, dataID);
    }

    /**
     * Returns an unique new data id from the MapStorage for the given prefix and saves the idCounts map to the