public boolean isUserAlreadyExists(String userId) {
		Connection connection = new DbConnection().getConnection();
		ResultSet resultSet = null;
		boolean flag = false;
		Statement statement = null;
		try {
			statement = connection.createStatement();
			resultSet = statement.executeQuery(IS_USER_ALREADY_EXISTS + userId);
			if (resultSet.next())
				flag = true;
		} catch (SQLException e) {
			m_logger.error(e.getMessage(), e);
		} finally {
			try {
				if (connection != null)
					connection.close();
				if (resultSet != null)
					resultSet.close();
				if (statement != null)
					statement.close();
			} catch (SQLException e) {
				m_logger.error(e.getMessage(), e);
			}
		}
		return flag;
	}