/**
* Returns a list of all available employees.
*
* @return a list of all available employees.
*/
public synchronized EmployeeList getAll() {
final EmployeeList employees = new EmployeeList();
for (final Employee employee : this.employees.values()) {
employees.add(createSmall(employee));
}
return employees;
}
/**
* This method takes in an int for employeeID and uses it to remove that specific employee from
* the database and the eList. If the ID doesn't exist a message is printed and nothing else
* happens.
*
* @param employeeID
*/
public void removeEmployee(int employeeID) {
if (eList.isEmployee(employeeID) == true) {
eList.removeEmployee(employeeID);
DBHandler db = DBHandler.getInstance();
db.openConnection("sql595207", "nT1*rF4!");
db.removeEmployee(employeeID);
db.closeConnection();
} else {
System.out.println("No valid employee ID entered.");
}
}
/**
* Log employee into system. It can be looped in a main method if the login information is
* incorrect. Returns true if login is successful.
*
* @param employeeId
* @param password
*/
public boolean login(int employeeId, String password) {
Employee e = this.eList.findEmployee(employeeId);
boolean successful = false;
try {
if (eList.checkPassword(employeeId, password)) {
loggedOnEmployees.addEmployee(eList.findEmployee(employeeId));
successful = true;
}
} catch (NullPointerException ex) {
System.out.println("Error: employeeID not found.");
}
return successful;
}
/**
* Takes in an employeeID and logs that employee out of the system. If employee is not in the
* loggedOnList it catches the error and prints out that no valid ID was entered.
*
* @param employeeId
* @return
*/
public boolean logout(int employeeId) {
boolean successful = false;
try {
loggedOnEmployees.removeEmployee(employeeId);
successful = true;
} catch (NullPointerException e) {
System.out.println("Error: employeeID not currently logged on.");
}
return successful;
}
/**
* Same as cashier method except with the boolean value for isManager set to true.
*
* @param name
* @param password
* @return
*/
public Employee addManager(String name, String password) {
DBHandler db = DBHandler.getInstance();
db.openConnection("sql595207", "nT1*rF4!");
this.userID = db.getNextUserID();
// for now I'm going to assume there is valid input for name and password
Employee newEmployee = new Employee(userID, true, name, password);
db.addEmployee(newEmployee);
db.closeConnection();
eList.addEmployee(newEmployee);
return newEmployee;
}
public boolean checkEmployee(int employeeId, String password) {
boolean successful = false;
try {
if (eList.checkPassword(employeeId, password)) {
successful = true;
}
} catch (NullPointerException ex) {
System.out.println("Error: employeeID not found.");
}
return successful;
}
/**
* This method is used to add an employee with already given data to the eList. It is used by the
* database handler when loading in employees to populate the local eList.
*
* @param employeeID
* @param isManager
* @param employeeName
* @param employeePassword
* @return
*/
public Employee setExistingEmployee(
int employeeID, Boolean isManager, String employeeName, String employeePassword) {
Employee newEmployee = new Employee(employeeID, isManager, employeeName, employeePassword);
eList.addEmployee(newEmployee);
return newEmployee;
}