+ <para>
+ Function <function>ZOOM_facet_field_name</function> gets the request facet name from a returned facet field.
+ </para>
+ <para>
+ Function <function>ZOOM_facet_field_get_term</function> returns the idx'th term and term count for a facet field.
+ Idx must between 0 and <function>ZOOM_facet_field_term_count</function>-1, otherwise the returned reference will be
+ <literal>NULL</literal>. On a valid idx, the value of the freq reference will be the term count.
+ The *freq parameter must be valid pointer to integer.
+ </para>