/* \newpage ---- This file is part of SECONDO. Copyright (C) 2004, University in Hagen, Department of Computer Science, Database Systems for New Applications. SECONDO is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. SECONDO is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with SECONDO; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ---- //[_] [\_] //characters [1] verbatim: [$] [$] //characters [2] formula: [$] [$] //characters [3] capital: [\textsc{] [}] //characters [4] teletype: [\texttt{] [}] 1 Headerfile "XTreeAlgebra.h"[4] January-May 2008, Mirko Dibbert 1.1 Overview This file contains some defines and constants, which could be used to configurate this algebra. */ #ifndef __XTREE_ALGEBRA_H__ #define __XTREE_ALGEBRA_H__ #include "Algebras/GeneralTree/GeneralTreeAlgebra.h" ///////////////////////////////////////////////////////////////////// // enables debugging mode for the xtree-algebra ///////////////////////////////////////////////////////////////////// // #define __XTREE_DEBUG ///////////////////////////////////////////////////////////////////// // enables print of statistic infos in the insert method ///////////////////////////////////////////////////////////////////// #define __XTREE_PRINT_INSERT_INFO ///////////////////////////////////////////////////////////////////// // enables print of mtree statistics in the out function ///////////////////////////////////////////////////////////////////// #define __XTREE_OUTFUN_PRINT_STATISTICS ///////////////////////////////////////////////////////////////////// // enables print of statistic infos in the search methods: ///////////////////////////////////////////////////////////////////// // #define __XTREE_PRINT_SEARCH_INFO ///////////////////////////////////////////////////////////////////// // enables print of statistic infos in the search methods // to file "xtree.log" ///////////////////////////////////////////////////////////////////// // #define __XTREE_PRINT_STATS_TO_FILE ///////////////////////////////////////////////////////////////////// // use min deadspace to resolve ties instead of minimal area in the // topologicalSplit and overlapMinimalSplit methods ///////////////////////////////////////////////////////////////////// #define __XTREE_SPLIT_USE_MIN_DEADSPACE namespace xtreeAlgebra { ///////////////////////////////////////////////////////////////////// // these constants are used within the XTree::split method ///////////////////////////////////////////////////////////////////// const double MAX_OVERLAP = 0.2; const double MIN_FANOUT = 0.35; ///////////////////////////////////////////////////////////////////// // en-/disable caching for all node types ///////////////////////////////////////////////////////////////////// const bool nodeCacheEnabled = true; ///////////////////////////////////////////////////////////////////// // intevall of printing statistic infos in the insert method // (only used, if __XTREE_PRINT_INSERT_INFO is defined) ///////////////////////////////////////////////////////////////////// const int insertInfoInterval = 10; /******************************************************************** The following constants are only default values for the xtree-config objects, that could be changed in some configurations. See the initialize method of the "XTreeConfigReg"[4] class for details. ********************************************************************/ ///////////////////////////////////////////////////////////////////// // en-/disable caching seperately for each node type ///////////////////////////////////////////////////////////////////// const bool leafCacheable = true; const bool internalCacheable = true; const bool supernodeCacheable = true; ///////////////////////////////////////////////////////////////////// // max. count of pages for leaf / internal nodes ///////////////////////////////////////////////////////////////////// const unsigned maxLeafPages = 1; const unsigned maxIntPages = 1; ///////////////////////////////////////////////////////////////////// // min. count of entries for leaf / internal nodes ///////////////////////////////////////////////////////////////////// const unsigned minLeafEntries = 3; const unsigned minIntEntries = 3; ///////////////////////////////////////////////////////////////////// // max. count of entries for leaf / internal nodes ///////////////////////////////////////////////////////////////////// const unsigned maxLeafEntries = std::numeric_limits::max(); const unsigned maxIntEntries = std::numeric_limits::max(); ///////////////////////////////////////////////////////////////////// // priorities of the defined node types // (higher priorities result into a higher probablility for // nodes of the respective type to remain in the node cache) ///////////////////////////////////////////////////////////////////// const unsigned leafPrio = 0; // default = 0 const unsigned internalPrio = 1; // default = 1 const unsigned supernodePrio = 2; // default = 2 ///////////////////////////////////////////////////////////////////// // constants for the node type id's ///////////////////////////////////////////////////////////////////// const gtree::NodeTypeId LEAF = 0; const gtree::NodeTypeId INTERNAL = 1; const gtree::NodeTypeId SUPERNODE = 2; // define __XTREE_ANALYSE_STATS if __XTREE_PRINT_SEARCH_INFO or // __XTREE_PRINT_STATS_TO_FILE has been defined #ifdef __XTREE_PRINT_SEARCH_INFO #define __XTREE_ANALYSE_STATS #else #ifdef __XTREE_PRINT_STATS_TO_FILE #define __XTREE_ANALYSE_STATS #endif #endif } // namespace xtreeAlgebra #endif // #ifndef __XTREE_ALGEBRA_H__