Mon, 11 May 2020 19:09:06 +0200
adds DAO for Project entity and save/update methods
/* * 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.AbstractDao; 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.Objects; public final class PGUserDao extends AbstractDao<User> implements UserDao { private final PreparedStatement insert; private final PreparedStatement update; public PGUserDao(Connection connection) throws SQLException { super(connection.prepareStatement("select * from lpit_user where userid >= 0 order by username")); insert = connection.prepareStatement("insert into lpit_user (username, lastname, givenname, mail) values (?, ?, ?, ?)"); update = connection.prepareStatement("update lpit_user set lastname = ?, givenname = ?, mail = ? where userid = ?"); } @Override public User mapColumns(ResultSet result, String q) throws SQLException { final var user = new User(result.getInt(qual(q, "userid"))); user.setUsername(result.getString(qual(q, "username"))); user.setGivenname(result.getString(qual(q, "givenname"))); user.setLastname(result.getString(qual(q, "lastname"))); 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; } }