code: public static synchronized void addCachedDatabaseConfigs(Collection<DatabaseTableConfig<?>> configs) {
  		Map<Class<?>, DatabaseTableConfig<?>> newMap;
  		if (configMap == null) {
  			newMap = new HashMap<Class<?>, DatabaseTableConfig<?>>();
  		} else {
  			newMap = new HashMap<Class<?>, DatabaseTableConfig<?>>(configMap);
  		}
  		for (DatabaseTableConfig<?> config : configs) {
  			newMap.put(config.getDataClass(), config);
  			logger.info("Loaded configuration for {}", config.getDataClass());
  		}
  		configMap = newMap;
  	}
docs: This adds database table configurations to the internal cache which can be used to speed up DAO construction.
  This is especially true of Android and other mobile platforms.