xapian-core/backends/alltermslist.cc

   1 /** @file alltermslist.cc
   2  * @brief Abstract base class for iterating all terms in a database.
   3  */
   4 /* Copyright (C) 2007,2008 Olly Betts
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <config.h>
  22
  23 #include "alltermslist.h"
  24
  25 #include <xapian/error.h>
  26
  27 #include "omassert.h"
  28
  29 using namespace std;
  30
  31 Xapian::termcount
  32 AllTermsList::get_approx_size() const
  33 {
  34     // We should never use get_approx_size() on AllTermsList subclasses.
  35     Assert(false);
  36     return 0;
  37 }
  38
  39 Xapian::termcount
  40 AllTermsList::get_wdf() const
  41 {
  42     throw Xapian::InvalidOperationError("AllTermsList::get_wdf() isn't meaningful");
  43 }
  44
  45 Xapian::termcount
  46 AllTermsList::positionlist_count() const
  47 {
  48     throw Xapian::InvalidOperationError("AllTermsList::positionlist_count() isn't meaningful");
  49 }
  50
  51 Xapian::PositionIterator
  52 AllTermsList::positionlist_begin() const
  53 {
  54     throw Xapian::InvalidOperationError("AllTermsList::positionlist_begin() isn't meaningful");
  55 }