backends/flint/flint_termlist.h

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00001 
00004 /* Copyright (C) 2007 Olly Betts
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (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_FLINT_TERMLIST_H
00022 #define XAPIAN_INCLUDED_FLINT_TERMLIST_H
00023 
00024 #include <string>
00025 
00026 #include <xapian/base.h>
00027 #include <xapian/positioniterator.h>
00028 #include <xapian/types.h>
00029 
00030 namespace Xapian {
00031     namespace Internal {
00032         class ExpandStats;
00033     }
00034 }
00035 
00036 #include "flint_database.h"
00037 #include "termlist.h"
00038 #include "flint_table.h"
00039 
00041 class FlintTermList : public TermList {
00043     void operator=(const FlintTermList &);
00044 
00046     FlintTermList(const FlintTermList &);
00047 
00049     Xapian::Internal::RefCntPtr<const FlintDatabase> db;
00050 
00052     Xapian::docid did;
00053 
00055     flint_doclen_t doclen;
00056 
00058     Xapian::termcount termlist_size;
00059 
00061     std::string data;
00062 
00067     const char *pos;
00068 
00070     const char *end;
00071 
00073     std::string current_term;
00074 
00076     Xapian::termcount current_wdf;
00077 
00083     mutable Xapian::doccount current_termfreq;
00084 
00085   public:
00087     FlintTermList(Xapian::Internal::RefCntPtr<const FlintDatabase> db_,
00088                   Xapian::docid did_);
00089 
00094     flint_doclen_t get_doclength() const;
00095 
00100     Xapian::termcount get_approx_size() const;
00101 
00103     void accumulate_stats(Xapian::Internal::ExpandStats & stats) const;
00104 
00106     std::string get_termname() const;
00107 
00109     Xapian::termcount get_wdf() const;
00110 
00118     Xapian::doccount get_termfreq() const;
00119 
00128     TermList * next();
00129 
00131     bool at_end() const;
00132 
00134     Xapian::termcount positionlist_count() const;
00135 
00137     Xapian::PositionIterator positionlist_begin() const;
00138 };
00139 
00140 #endif // XAPIAN_INCLUDED_FLINT_TERMLIST_H

Documentation for Xapian (version 1.0.10).
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