Dao<Entity, Integer> dao = DaoManager.createDao(connectionSource, Entity.class); Entity entity = new Entity(); entity.setName("John"); entity.setAge(25); dao.create(entity); QueryBuilder<Entity, Integer> queryBuilder = dao.queryBuilder(); queryBuilder.where().eq("name", "John"); List<Entity> entities = queryBuilder.query(); entity.setAge(26); dao.update(entity); dao.delete(entity);