DataBaseQuery.java

package com.example.scheduler_server;

import java.sql.*;

/*
    Name: DataBaseQuery
    Description: Makes the connection to the database, and sends the connection to the Staff and Schedule after
    initializing them.
 */
public class DataBaseQuery {
    protected Staff staff;
    protected Schedule schedule;
    protected TimeOff timeOff;
    protected Availability availability;
    protected Positions positions;
    private Connection dbConnection;

    /*
    Name: DataBaseQuery
    Parameters:
        String dbURL: The URL of the database
        String dbUser: The username of the database.
        String dbPass: The password of the database.
    Description: Calls connectDataBase and initializes the Staff and Schedule.
    Return: DataBaseQuery
     */
    public DataBaseQuery(String dbURL, String dbUser, String dbPass){
        connectDataBase(dbURL, dbUser, dbPass);
        this.staff = new Staff(dbConnection);
        this.schedule = new Schedule(dbConnection);
        this.timeOff = new TimeOff(dbConnection);
        this.availability = new Availability(dbConnection);
        this.positions = new Positions(dbConnection);
    }

    /*
    Name: connectDataBase
    Parameters:
        String dbURL: The URL of the database
        String dbUser: The username of the database.
        String dbPass: The password of the database.
    Description: Establishes the connection to the database.
    Return: void
     */
    protected void connectDataBase(String dbURL, String dbUser, String dbPass){
        try {
            dbConnection = DriverManager.getConnection(dbURL, dbUser, dbPass);
        } catch (Exception exception) {
            System.out.println("Failed to connect to the database");
            exception.printStackTrace();
        }
        System.out.println("Successfully connected to the database");
    }

}