SingleTon Database Connection

DataSource.java

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package utils;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/**
 *
 * @author oflcad
 */
public class DataSource {
    private static DataSource instance;
    private Connection connection;
    private String urlString = "jdbc:mysql://localhost:3306/esprit";
    private String username = "root";
    private String password = "mysql";

    private DataSource() throws SQLException {
        try {
            //Class.forName("com.mysql.jdbc.Driver");
            this.connection = DriverManager.getConnection(urlString, username, password);
        } catch (SQLException ex) {
            System.out.println("Database Connection Creation Failed : " + ex.getMessage());
        }
    }
    


    public Connection getConnection() {
        return connection;
    }

    public static DataSource getInstance() throws SQLException {
        if (instance == null) {
            instance = new DataSource();
        } else if (instance.getConnection().isClosed()) {
            instance = new DataSource();
        }

        return instance;
    }
}