/**
     * Gets a list of role types based on the pager.
     * @param roleTypePager The pager for role types.
     * @return A list of role types.
     */
    public List<RoleType> getRoleTypeList(final RoleTypePager roleTypePager) {

        final PagingResultBean<RoleType> roleTypeList = roleTypeBhv.selectPage(cb -> {
            cb.paging(roleTypePager.getPageSize(), roleTypePager.getCurrentPageNumber());