docs: public static <T> DatabaseTableConfig<T> fromClass(ConnectionSource connectionSource, Class<T> clazz)
  			throws SQLException {
  		DatabaseType databaseType = connectionSource.getDatabaseType();
  		String tableName = DatabaseTableConfig.extractTableName(databaseType, clazz);
  		List<DatabaseFieldConfig> fieldConfigs = new ArrayList<DatabaseFieldConfig>();
  		for (Class<?> classWalk = clazz; classWalk != null; classWalk = classWalk.getSuperclass()) {
  			for (Field field : classWalk.getDeclaredFields()) {
  				DatabaseFieldConfig config = configFromField(databaseType, tableName, field);
  				if (config != null && config.isPersisted()) {
  					fieldConfigs.add(config);
  				}
  			}
  		}
  		if (fieldConfigs.size() == 0) {
  			return null;
  		} else {
  			return new DatabaseTableConfig<T>(clazz, tableName, fieldConfigs);
  		}
  	}