00001 00004 /* Copyright (C) 2007 Olly Betts 00005 * 00006 * This program is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU General Public License as 00008 * published by the Free Software Foundation; either version 2 of the 00009 * License, or (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #ifndef XAPIAN_INCLUDED_LEAFPOSTLIST_H 00022 #define XAPIAN_INCLUDED_LEAFPOSTLIST_H 00023 00024 #include "postlist.h" 00025 00026 namespace Xapian { 00027 class Weight; 00028 } 00029 00035 class LeafPostList : public PostList { 00037 void operator=(const LeafPostList &); 00038 00040 LeafPostList(const LeafPostList &); 00041 00042 protected: 00043 const Xapian::Weight * weight; 00044 bool need_doclength; 00045 00047 LeafPostList() : weight(0), need_doclength(false) { } 00048 00049 public: 00050 ~LeafPostList(); 00051 00061 void set_termweight(const Xapian::Weight * weight_); 00062 00068 virtual Xapian::doccount get_termfreq() const = 0; 00069 00070 Xapian::doccount get_termfreq_min() const; 00071 Xapian::doccount get_termfreq_max() const; 00072 Xapian::doccount get_termfreq_est() const; 00073 00074 Xapian::weight get_maxweight() const; 00075 Xapian::weight get_weight() const; 00076 Xapian::weight recalc_maxweight(); 00077 }; 00078 00079 #endif // XAPIAN_INCLUDED_LEAFPOSTLIST_H