}

    String getApiSearchAcceptReferers();

    default boolean isAcceptedSearchReferer(final String referer) {
        Pattern[] patterns = (Pattern[]) propMap.get(API_SEARCH_ACCEPT_REFERERS);
        if (patterns == null) {
            final String refs = getApiSearchAcceptReferers();
            if (StringUtil.isBlank(refs)) {

     * The value is, e.g.  <br>
     * comment: Accepted referers for API search.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getApiSearchAcceptReferers();

    /**
     * Get the value for the key 'api.search.accept.referers' as {@link Integer}. <br>
     * The value is, e.g.  <br>
     * comment: Accepted referers for API search.