public void delete(Address address) throws SQLException {

    Connection connection = ds.getConnection();
    try {
      Statement statement = connection.createStatement();
      try {
        statement.executeUpdate("delete from address where id=" + address.getId());
      } finally {
        statement.close();
      }
    } finally {
      connection.close();
    }
  }
 public void update(Address address) throws SQLException {
   Connection connection = ds.getConnection();
   try {
     Statement statement = connection.createStatement();
     try {
       statement.executeUpdate(
           "update address set street='"
               + address.getStreet()
               + "', city='"
               + address.getCity()
               + "', state= '"
               + address.getState()
               + "', zip='"
               + address.getZip()
               + "' where id="
               + address.getId());
     } finally {
       statement.close();
     }
   } finally {
     connection.close();
   }
 }