116 lines
3.4 KiB
Java
116 lines
3.4 KiB
Java
package dev.mateuszkowalczyk.ffm.data.database.person;
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import dev.mateuszkowalczyk.ffm.data.DatabaseService;
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import dev.mateuszkowalczyk.ffm.data.database.Dao;
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import dev.mateuszkowalczyk.ffm.data.database.face.Face;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Optional;
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public class PersonDAO implements Dao<Person> {
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private List<Person> personList = new ArrayList<>();
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private static PersonDAO instance;
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private DatabaseService databaseService = DatabaseService.getInstance();
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private PersonDAO () {}
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public static PersonDAO getInstance() {
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if (instance == null) {
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instance = new PersonDAO();
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}
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return instance;
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}
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@Override
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public Optional<Person> get(long id) {
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return Optional.empty();
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}
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@Override
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public List<Person> getAll() {
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return this.getAll(false);
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}
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@Override
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public List<Person> getAll(boolean refresh) {
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if (this.personList.size() == 0 || refresh) {
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this.personList.clear();
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String sql = "SELECT * FROM persons";
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try {
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PreparedStatement preparedStatement = this.databaseService.getConnection().prepareStatement(sql);
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ResultSet resultSet = preparedStatement.executeQuery();
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while (resultSet.next()) {
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Person person = new Person(resultSet);
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this.personList.add(person);
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}
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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return this.personList;
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}
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@Override
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public void add(Person person) {
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String sql = "INSERT INTO persons (name) values(?)";
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try {
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PreparedStatement preparedStatement = databaseService.getConnection().prepareStatement(sql);
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preparedStatement.setString(1, person.getName());
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preparedStatement.executeUpdate();
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sql = "SELECT id FROM persons ORDER BY id DESC LIMIT 1";
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ResultSet resultSet = databaseService.getConnection().prepareStatement(sql).executeQuery();
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while (resultSet.next()) {
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person.setId(resultSet.getLong("id"));
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this.personList.add(person);
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}
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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@Override
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public void update(Person person) {
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String sql = "UPDATE persons SET name = ? WHERE id = ?";
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try {
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PreparedStatement preparedStatement = this.databaseService.getConnection().prepareStatement(sql);
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preparedStatement.setString(1, person.getName());
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preparedStatement.setLong(2, person.getId());
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preparedStatement.executeUpdate();
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this.getAll(true);
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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@Override
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public void delete(Person person) {
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String sql = "DELETE FROM persons WHERE id = ?";
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try {
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PreparedStatement preparedStatement = this.databaseService.getConnection().prepareStatement(sql);
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preparedStatement.setLong(1, person.getId());
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preparedStatement.executeUpdate();
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this.getAll(true);
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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