118 lines
2.6 KiB
C++
118 lines
2.6 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//paragraph [1] Title: [{\Large \bf \begin {center}] [\end {center}}]
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//[TOC] [\tableofcontents]
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//[_] [\_]
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[1] Implementation of the Indoor Algebra
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June, 2010 Jianqiu Xu
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[TOC]
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1 Overview
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2 Defines and Includes
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*/
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#undef __TRACE__
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//#define __TRACE__ cout << __FILE__ << "::" << __LINE__;
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#define __TRACE__
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#include "../../Tools/Flob/Flob.h"
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#include "../../Tools/Flob/DbArray.h"
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#include "Algebra.h"
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#include "NestedList.h"
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#include "ListUtils.h"
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#include "Symbols.h"
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#include "QueryProcessor.h"
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#include "StandardTypes.h"
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#include "IndoorAlgebra.h"
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#include "SecondoConfig.h"
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#include "AlmostEqual.h"
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#include <vector>
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#include <queue>
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#include <stdexcept>
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#include <iostream>
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#include <string.h>
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#include <string>
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#include <cmath>
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#include <algorithm>
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#include <ctime>
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#include <queue>
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#include <iterator>
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#include <sstream>
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#include <limits>
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using namespace std;
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extern NestedList* nl;
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extern QueryProcessor* qp;
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/*
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11 Creating the Algebra
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*/
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class IndoorAlgebra : public Algebra
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{
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public:
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IndoorAlgebra() : Algebra()
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{
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}
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~IndoorAlgebra() {};
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};
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/*
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12 Initialization
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Each algebra module needs an initialization function. The algebra manager
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has a reference to this function if this algebra is included in the list
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of required algebras, thus forcing the linker to include this module.
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The algebra manager invokes this function to get a reference to the instance
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of the algebra class and to provide references to the global nested list
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container (used to store constructor, type, operator and object information)
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and to the query processor.
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The function has a C interface to make it possible to load the algebra
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dynamically at runtime.
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*/
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extern "C"
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Algebra*
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InitializeIndoorAlgebra( NestedList* nlRef, QueryProcessor* qpRef )
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{
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nl = nlRef;
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qp = qpRef;
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return (new IndoorAlgebra());
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}
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