</example>
  </function>

  <function>
    <description>
      Returns query parameters for Geo.
    </description>
    <name>geoQuery</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>java.lang.String geoQuery()</function-signature>
    <example>
      ${fe:geoQuery()}
    </example>
  </function>

  <function>
    <description>

            return null;
        }).orElse(StringUtil.EMPTY);
    }

    public static String facetQuery() {
        return createQuery(Constants.FACET_QUERY, FACET_PREFIX);
    }

    public static String geoQuery() {
        return createQuery(Constants.GEO_QUERY, GEO_PREFIX);
    }

    public static String facetForm() {
        return createForm(Constants.FACET_FORM, FACET_PREFIX);
    }

    public static final String CRAWLING_INFO_SYSTEM_NAME = "system";

    // view parameters

    public static final String FACET_QUERY = "fess.FacetQuery";

    public static final String GEO_QUERY = "fess.GeoQuery";

    public static final String FACET_FORM = "fess.FacetForm";

    public static final String GEO_FORM = "fess.GeoForm";

    public static final String LABEL_VALUE_MAP = "fess.LabelValueMap";