parameters: (self, term, field, is_not)
docstring: Private method that returns a xapian.Query that searches for an exact
          match for `term` in a specified `field`.
  
          Required arguments:
              ``term`` -- The term to search for
              ``field`` -- The field to search
              ``is_not`` -- Invert the search results
  
          Returns:
              A xapian.Query
docstring_summary: Private method that returns a xapian.Query that searches for an exact
          match for `term` in a specified `field`.
docstring_tokens: Private method that returns a xapian . Query that searches for an exact match for term in a specified field .
function: def _filter_exact(self, term, field, is_not):
          """
          Private method that returns a xapian.Query that searches for an exact
          match for `term` in a specified `field`.
  
          Required arguments:
              ``term`` -- The term to search for
              ``field`` -- The field to search
              ``is_not`` -- Invert the search results
  
          Returns:
              A xapian.Query
          """
          if is_not:
              return xapian.Query(
                  xapian.Query.OP_AND_NOT, self._all_query(), self._phrase_query(term.split(), field)
              )
          else:
              return self._phrase_query(term.split(), field)
function_tokens: def _filter_exact ( self , term , field , is_not ) : if is_not : return xapian . Query ( xapian . Query . OP_AND_NOT , self . _all_query ( ) , self . _phrase_query ( term . split ( ) , field ) ) else : return self . _phrase_query ( term . split ( ) , field )