class UserManagerServiceImpl extends HibernateDaoImpl implements UserManagerService {

    @Transactional(propagation = Propagation.REQUIRED, readOnly = false)
    public void deleteAll(ExecutionContext context, List<String> users) {
        if (users != null) {

            for(String userName : users) {
                if (userName != null && userName.length() > 0) {
                    userService.deleteUser(context, userName);
                }
            }

        }
    }

}