com.leapfrog.SpringMaven.DAOImpl.UserDAOImpl.java Source code

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Here is the source code for com.leapfrog.SpringMaven.DAOImpl.UserDAOImpl.java

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package com.leapfrog.SpringMaven.DAOImpl;

import com.leapfrog.SpringMaven.DAO.UserDAO;
import com.leapfrog.SpringMaven.Entity.User;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;

/**
 *
 * @author Chandra
 */
@Repository(value = "userDAO")
public class UserDAOImpl implements UserDAO {

    //to instantiate the JdbcTemplete object spring framework - using dependency injection we have @autowired 
    @Autowired
    private JdbcTemplate jdbcTemplate; //to use jdbc in spring framework we need jdbctemplete object

    @Override
    public int insert(User user) throws SQLException, ClassNotFoundException {

        String sql = "INSERT into tbl_user(user_name,password,email,status) VALUES(?,?,?,?)";
        return jdbcTemplate.update(sql,
                new Object[] { user.getUserName(), user.getPassword(), user.getEmail(), user.isStatus() });
    }

    @Override
    public List<User> getAll() throws SQLException, ClassNotFoundException {
        String query = "SELECT * from tbl_user";
        return jdbcTemplate.query(query, new RowMapper<User>() {

            @Override
            public User mapRow(ResultSet rs, int i) throws SQLException {
                User user = new User();

                user.setId(rs.getInt("user_id"));
                user.setUserName(rs.getString("user_name"));
                user.setPassword(rs.getString("password"));
                user.setEmail(rs.getString("email"));
                user.setStatus(rs.getBoolean("status"));

                return user;

            }
        });

    }

    @Override
    public User getById(int id) throws SQLException, ClassNotFoundException {

        String query = "SELECT * from  tbl_user where user_id=?";
        return jdbcTemplate.queryForObject(query, new Object[] { id }, new RowMapper<User>() {

            @Override
            public User mapRow(ResultSet rs, int i) throws SQLException {
                User user = new User();

                user.setId(rs.getInt("user_id"));
                user.setUserName(rs.getString("user_name"));
                user.setPassword(rs.getString("password"));
                user.setEmail(rs.getString("email"));
                user.setStatus(rs.getBoolean("status"));

                return user;

            }

        });
    }

    @Override
    public List<User> Search(String pattern) throws SQLException, ClassNotFoundException {

        String query = "SELECT * from tbl_user where user_name LIKE ? ";
        return jdbcTemplate.query(query, new Object[] { "%" + pattern + "%" }, new RowMapper<User>() {

            @Override
            public User mapRow(ResultSet rs, int i) throws SQLException {
                User user = new User();

                user.setId(rs.getInt("user_id"));
                user.setUserName(rs.getString("user_name"));
                user.setPassword(rs.getString("password"));
                user.setEmail(rs.getString("email"));
                user.setStatus(rs.getBoolean("status"));

                return user;

            }
        });

    }

    @Override
    public int delete(int id) throws SQLException, ClassNotFoundException {
        String query = "DELETE from tbl_user where user_id=?";

        return jdbcTemplate.update(query, new Object[] { id });

    }

    @Override
    public int update(User user) throws SQLException, ClassNotFoundException {
        String sql = "UPDATE  tbl_user SET user_name=?,password=?,email=?,status=? where user_id=?";
        return jdbcTemplate.update(sql, new Object[] { user.getUserName(), user.getPassword(), user.getEmail(),
                user.isStatus(), user.getId() });
    }

}