LightPIT: src/main/java/de/uapcore/lightpit/dao/postgres/PGUserDao.java@57cfb94ab99f (annotated)

src/main/java/de/uapcore/lightpit/dao/postgres/PGUserDao.java@57cfb94ab99f (annotated)

src/main/java/de/uapcore/lightpit/dao/postgres/PGUserDao.java

Thu, 14 May 2020 22:48:01 +0200

author: Mike Becker <universe@uap-core.de>
date: Thu, 14 May 2020 22:48:01 +0200
changeset 47: 57cfb94ab99f
parent 38: cf85ef18f231
child 51: dd0a45ae25d7
permissions: -rw-r--r--

projects can now be added and updated

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2018 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
  */
 package de.uapcore.lightpit.dao.postgres;
 import de.uapcore.lightpit.dao.GenericDao;
 import de.uapcore.lightpit.dao.UserDao;
 import de.uapcore.lightpit.entities.User;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
 import static de.uapcore.lightpit.dao.Functions.setStringOrNull;
 public final class PGUserDao implements UserDao, GenericDao<User> {
     public static final String[] COLUMNS = {
             "id", "username", "lastname", "givenname", "mail"
     };
     private final PreparedStatement insert, update, list, find;
     public PGUserDao(Connection connection) throws SQLException {
         list = connection.prepareStatement(
                 "select userid, username, lastname, givenname, mail " +
                         "from lpit_user where userid >= 0 " +
                         "order by username");
         find = connection.prepareStatement(
                 "select userid, username, lastname, givenname, mail " +
                         "from lpit_user where userid = ? ");
         insert = connection.prepareStatement("insert into lpit_user (username, lastname, givenname, mail) values (?, ?, ?, ?)");
         update = connection.prepareStatement("update lpit_user set lastname = ?, givenname = ?, mail = ? where userid = ?");
     }
     public User mapColumns(ResultSet result) throws SQLException {
         final int id = result.getInt("userid");
         if (id == 0) return null;
         final var user = new User(id);
         user.setUsername(result.getString("username"));
         user.setGivenname(result.getString("givenname"));
         user.setLastname(result.getString("lastname"));
         user.setMail(result.getString("mail"));
         return user;
     }
     @Override
     public void save(User instance) throws SQLException {
         Objects.requireNonNull(instance.getUsername());
         insert.setString(1, instance.getUsername());
         setStringOrNull(insert, 2, instance.getLastname());
         setStringOrNull(insert, 3, instance.getGivenname());
         setStringOrNull(insert, 4, instance.getMail());
         insert.executeUpdate();
     }
     @Override
     public boolean update(User instance) throws SQLException {
         setStringOrNull(update, 1, instance.getLastname());
         setStringOrNull(update, 2, instance.getGivenname());
         setStringOrNull(update, 3, instance.getMail());
         update.setInt(4, instance.getUserID());
         return update.executeUpdate() > 0;
     }
     @Override
     public List<User> list() throws SQLException {
         List<User> users = new ArrayList<>();
         try (var result = list.executeQuery()) {
             while (result.next()) {
                 users.add(mapColumns(result));
             }
         }
         return users;
     }
     @Override
     public User find(int id) throws SQLException {
         find.setInt(1, id);
         try (var result = find.executeQuery()) {
             if (result.next()) {
                 return mapColumns(result);
             } else {
                 return null;
             }
         }
     }
 }

Mercurial > hg > LightPIT / annotate

src/main/java/de/uapcore/lightpit/dao/postgres/PGUserDao.java@57cfb94ab99f (annotated)

src/main/java/de/uapcore/lightpit/dao/postgres/PGUserDao.java