BasicStringDiskIndex.h

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00001 #ifndef TAGCOLL_BASIC_DISK_INDEX_H
00002 #define TAGCOLL_BASIC_DISK_INDEX_H
00003 
00008 /*
00009  * Copyright (C) 2006  Enrico Zini <enrico@debian.org>
00010  *
00011  * This program is free software; you can redistribute it and/or modify
00012  * it under the terms of the GNU General Public License as published by
00013  * the Free Software Foundation; either version 2 of the License, or
00014  * (at your option) any later version.
00015  *
00016  * This program is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU General Public License
00022  * along with this program; if not, write to the Free Software
00023  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00024  */
00025 
00026 #include <tagcoll/Collection.h>
00027 #include <tagcoll/Serializer.h>
00028 #include <tagcoll/Exception.h>
00029 #include <tagcoll/IntDiskIndex.h>
00030 #include <tagcoll/StringIndex.h>
00031 #include <tagcoll/InputMerger.h>
00032 
00033 namespace Tagcoll
00034 {
00035 
00043 class BasicStringDiskIndex : public MasterMMapIndex, public IntDiskIndex<std::string, std::string>
00044 {
00045 protected:
00046     StringIndex pkgs;
00047     StringIndex tags;
00048 
00049 public:
00056     BasicStringDiskIndex(const std::string& file);
00057     virtual ~BasicStringDiskIndex() {}
00058 
00059     const std::string& filename() const { return m_filename; }
00060 
00061     static void remove(const std::string& dir);
00062 };
00063 
00064 class BasicStringDiskIndexer : public Consumer<std::string, std::string>
00065 {
00066 protected:
00067     InputMerger<std::string, std::string> cache;
00068     StringIndexer pkgs;
00069     StringIndexer tags;
00070 
00071     virtual void consumeItemUntagged(const std::string& item);
00072     virtual void consumeItem(const std::string& item, const OpSet<std::string>& tags);
00073 
00074 public:
00075     virtual ~BasicStringDiskIndexer() {}
00076 
00077     void write(const std::string& file);
00078 };
00079 
00080 
00081 };
00082 
00083 // vim:set ts=4 sw=4:
00084 #endif

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