xapian-core/api/termlist.cc

   1 /** @file termlist.cc
   2  * @brief Abstract base class for termlists.
   3  */
   4 /* Copyright (C) 2007,2010,2013 Olly Betts
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (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 "termlist.h"
  24
  25 #include "omassert.h"
  26
  27 using namespace std;
  28
  29 namespace Xapian {
  30
  31 TermIterator::Internal::~Internal() { }
  32
  33 void
  34 TermIterator::Internal::accumulate_stats(Xapian::Internal::ExpandStats &) const
  35 {
  36     // accumulate_stats should never get called for some subclasses.
  37     Assert(false);
  38 }
  39
  40 Xapian::termcount
  41 TermIterator::Internal::get_collection_freq() const
  42 {
  43     // This method isn't currently externally exposed (or used internally).
  44     Assert(false);
  45     return 0;
  46 }
  47
  48 // Default implementation for when the positions aren't in vector<termpos>.
  49 const std::vector<Xapian::termpos> *
  50 TermIterator::Internal::get_vector_termpos() const
  51 {
  52     return NULL;
  53 }
  54
  55 }