* @param username the username to search for
     * @return an OptionalEntity containing the user if found
     */
    public OptionalEntity<User> getUserByName(final String username) {
        return userBhv.selectEntity(cb -> {
            cb.query().setName_Equal(username);
        });
    }

    /**
     * Stores (inserts or updates) a user in the system.
     * Handles user authentication setup and database persistence.

    public int selectCount(CBCall<ClickLogCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<ClickLog> selectEntity(CBCall<ClickLogCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<ClickLog> facadeSelectEntity(ClickLogCB cb) {

    public int selectCount(CBCall<RoleCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<Role> selectEntity(CBCall<RoleCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<Role> facadeSelectEntity(RoleCB cb) {

    public int selectCount(CBCall<FailureUrlCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<FailureUrl> selectEntity(CBCall<FailureUrlCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<FailureUrl> facadeSelectEntity(FailureUrlCB cb) {

            return null;
        }

        final FailureUrlBhv bhv = ComponentUtil.getComponent(FailureUrlBhv.class);
        final FailureUrl failureUrl = bhv.selectEntity(cb -> {
            cb.query().setUrl_Equal(url);
            if (crawlingConfig != null) {
                cb.query().setConfigId_Equal(crawlingConfig.getConfigId());
            }
        }).map(entity -> {

        final String token = ComponentUtil.getAccessTokenHelper().getAccessTokenFromRequest(request);
        if (StringUtil.isNotBlank(token)) {
            return accessTokenBhv.selectEntity(cb -> {
                cb.query().setToken_Term(token);
            }).map(accessToken -> {
                final Set<String> permissionSet = new HashSet<>();

        if (crawlingInfo != null) {
            final CrawlingInfoBhv crawlingInfoBhv = ComponentUtil.getComponent(CrawlingInfoBhv.class);
            crawlingInfo = crawlingInfoBhv.selectEntity(cb -> {
                cb.query().docMeta().setId_Equal(getCrawlingInfoId());
            });
        }
        return crawlingInfo;
    }

    public String getKeyMsg() {

exentity  : extended entities
- - - - - - - - - -/

For example, if a table called "MEMBER" exists,
you can use these classes like this:
/- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
memberBhv.selectEntity(cb -> {
    cb.query().setMemberId_Equal(3);
}).alwaysPresent(member -> {
    ... = member.getMemberName();
});
// memberBhv      : Behavior (instance)
// MemberCB(cb)   : ConditionBean
// Member(member) : Entity

    public int selectCount(CBCall<KeyMatchCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<KeyMatch> selectEntity(CBCall<KeyMatchCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<KeyMatch> facadeSelectEntity(KeyMatchCB cb) {

    public int selectCount(CBCall<FavoriteLogCB> cbLambda) {
        return facadeSelectCount(createCB(cbLambda));
    }

    public OptionalEntity<FavoriteLog> selectEntity(CBCall<FavoriteLogCB> cbLambda) {
        return facadeSelectEntity(createCB(cbLambda));
    }

    protected OptionalEntity<FavoriteLog> facadeSelectEntity(FavoriteLogCB cb) {