创建域

/**
     * 创建域
     * @param domainName  域名称
     * @return AdministrativeDomain   域
     */
    public static AdministrativeDomain createDomain(String domainName) throws WTException
    {
        QuerySpec qs = new QuerySpec(AdministrativeDomain.class);
        SearchCondition sc = new SearchCondition(AdministrativeDomain.class,
                AdministrativeDomain.NAME, SearchCondition.EQUAL, domainName);
        qs.appendWhere(sc);
        QueryResult qr = PersistenceHelper.manager.find(qs);
        if (qr.hasMoreElements())
        {
            throw new WTException("需要创建的域已经存在:" + domainName);
        }
        try
        {
            AdministrativeDomain domain = AdministrativeDomain.newAdministrativeDomain(domainName);
            domain = (AdministrativeDomain) PersistenceHelper.manager.save(domain);
            return domain;
        } catch (WTException e)
        {
            logger.error(e.getMessage());
            throw new WTException("创建以下域时出错:" + domainName);
        }
    }