@Override
public List<BannerImage> getBannerImages(Integer bannerId) {
String sql = "SELECT * FROM " +quoteTable("banner_image")+ " WHERE banner_id = ?";
List<BannerImage> imageList = getJdbcOperations().query(sql,
new Object[]{bannerId}, new BannerImageRowMapper());
sql = "SELECT * FROM " +quoteTable("banner_image_description")+ " WHERE banner_image_id = ? AND banner_id = ?";
for(BannerImage image: imageList){
List<BannerImageDesc> descList = getJdbcOperations().query(sql, new Object[]{image.getId(),
image.getBannerId()}, new BannerImageRowMapper.Desc());
image.setDescs(descList);