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TagcollBuilder.h

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00001 #ifndef TAGCOLL_BUILDER_H 00002 #define TAGCOLL_BUILDER_H 00003 00004 /* 00005 * TagcollConsumer that builds a tagged collection 00006 * 00007 * Copyright (C) 2003 Enrico Zini <enrico@debian.org> 00008 * 00009 * This library is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU Lesser General Public 00011 * License as published by the Free Software Foundation; either 00012 * version 2.1 of the License, or (at your option) any later version. 00013 * 00014 * This library is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 * Lesser General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU Lesser General Public 00020 * License along with this library; if not, write to the Free Software 00021 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 */ 00023 00024 #pragma interface 00025 00026 #include <tagcoll/HandleMaker.h> 00027 #include <tagcoll/TagcollConsumer.h> 00028 #include <tagcoll/TagCollection.h> 00029 00030 namespace Tagcoll 00031 { 00032 00033 // TagcollConsumer that builds a tagged collection 00034 class TagcollBuilder : public TagcollConsumer<std::string> 00035 { 00036 protected: 00037 HandleMaker<std::string>& handleMaker; 00038 TagCollection<int, std::string> coll; 00039 00040 OpSet<int> itemsToHandles(const OpSet<std::string>& ts) throw () 00041 { 00042 OpSet<int> res; 00043 for (OpSet<std::string>::const_iterator i = ts.begin(); 00044 i != ts.end(); i++) 00045 res += handleMaker.getHandle(*i); 00046 return res; 00047 } 00048 00049 public: 00050 TagcollBuilder(HandleMaker<std::string>& handleMaker) throw () 00051 : handleMaker(handleMaker) {} 00052 virtual ~TagcollBuilder() throw () {} 00053 00054 virtual void consume(const std::string& item) throw () 00055 { 00056 coll.add(handleMaker.getHandle(item)); 00057 } 00058 00059 virtual void consume(const std::string& item, const OpSet<std::string>& tags) throw () 00060 { 00061 coll.add(tags, handleMaker.getHandle(item)); 00062 } 00063 00064 virtual void consume(const OpSet<std::string>& items) throw () 00065 { 00066 coll.add(itemsToHandles(items)); 00067 } 00068 00069 virtual void consume(const OpSet<std::string>& items, const OpSet<std::string>& tags) throw () 00070 { 00071 coll.add(tags, itemsToHandles(items)); 00072 } 00073 00074 // Retrieve the resulting collection 00075 TagCollection<int, std::string> collection() throw () { return coll; } 00076 const TagCollection<int, std::string> collection() const throw () { return coll; } 00077 }; 00078 00079 }; 00080 00081 // vim:set ts=4 sw=4: 00082 #endif

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