1 #ifndef _VolatileCache_h_ 2 #define _VolatileCache_h_ 3 4 // 5 // VolatileCache.h 6 // 7 // VolatileCache: the simplest non-persistent Query result cache. 8 // This is default policy. 9 // 10 // Part of the ht://Dig package <http://www.htdig.org/> 11 // Copyright (c) 1995-2004 The ht://Dig Group 12 // For copyright details, see the file COPYING in your distribution 13 // or the GNU Library General Public License (LGPL) version 2 or later 14 // <http://www.gnu.org/copyleft/lgpl.html> 15 // 16 // $Id: VolatileCache.h,v 1.4 2004/05/28 13:15:24 lha Exp $ 17 // 18 19 #ifdef HAVE_CONFIG_H 20 #include "htconfig.h" 21 #endif 22 23 #include "QueryCache.h" 24 #include "Dictionary.h" 25 26 class VolatileCache : public QueryCache 27 { 28 public: 29 // cons & destr VolatileCache()30 VolatileCache() {} 31 ~VolatileCache(); 32 33 // get cached result from in-memory cache 34 ResultList *Lookup(const String &signature); 35 36 // add result to in-memory cache 37 void Add(const String &signature, ResultList *entry); 38 39 private: 40 Dictionary cache; 41 static ResultList * const empty; 42 }; 43 44 #endif 45