private void disconnect() {
		try {
			if(resultSet != null) {
				resultSet.close();
			}
			
			if(preparedStatement != null) {
				preparedStatement.close();
			}
			
			if(connection != null) {
				connection.close();
			}
		}
		catch(SQLException e) {
			e.printStackTrace();
			Logger.error("Failed to terminate database connection! (%s)", e.getMessage());
		}
	}