//                                                                             DB Meta
    //                                                                             =======
    @Override
    public CrawlingInfoParamDbm asDBMeta() {
        return CrawlingInfoParamDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "crawling_info_param";
    }

    //                                                                             DB Meta
    //                                                                             =======
    @Override
    public JobLogDbm asDBMeta() {
        return JobLogDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "job_log";
    }

    //                                                                             DB Meta
    //                                                                             =======
    @Override
    public DuplicateHostDbm asDBMeta() {
        return DuplicateHostDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "duplicate_host";
    }

    //                                                                             DB Meta
    //                                                                             =======
    @Override
    public RelatedQueryDbm asDBMeta() {
        return RelatedQueryDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "related_query";
    }

    //                                                                             DB Meta
    //                                                                             =======
    @Override
    public RequestHeaderDbm asDBMeta() {
        return RequestHeaderDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "request_header";
    }

    //                                                                             Control
    //                                                                             =======
    @Override
    public AccessTokenDbm asDBMeta() {
        return AccessTokenDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "access_token";
    }

    @Override
    public boolean hasSpecifiedColumn() {

    //                                                                             Control
    //                                                                             =======
    @Override
    public FailureUrlDbm asDBMeta() {
        return FailureUrlDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "failure_url";
    }

    @Override
    public boolean hasSpecifiedColumn() {

    //                                                                             Control
    //                                                                             =======
    @Override
    public RelatedContentDbm asDBMeta() {
        return RelatedContentDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "related_content";
    }

    @Override

    //                                                                             DB Meta
    //                                                                             =======
    @Override
    public RelatedContentDbm asDBMeta() {
        return RelatedContentDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "related_content";
    }

    //                                                                             Control
    //                                                                             =======
    @Override
    public UserInfoDbm asDBMeta() {
        return UserInfoDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "user_info";
    }

    @Override
    public boolean hasSpecifiedColumn() {