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author | Constantin Jucovschi <cj@ubuntu.localdomain> | 2009-04-24 07:20:22 -0400 |
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committer | Constantin Jucovschi <cj@ubuntu.localdomain> | 2009-04-24 07:20:22 -0400 |
commit | 8f27e65bddd7d4b8515ce620fb485fdd78fcdf89 (patch) | |
tree | bd328a4dd4f92d32202241b5e3a7f36177792c5f /qlparser/qtvariable.hh | |
download | rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.gz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.xz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.zip |
Initial commitv8.0
Diffstat (limited to 'qlparser/qtvariable.hh')
-rw-r--r-- | qlparser/qtvariable.hh | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/qlparser/qtvariable.hh b/qlparser/qtvariable.hh new file mode 100644 index 0000000..f056da7 --- /dev/null +++ b/qlparser/qtvariable.hh @@ -0,0 +1,136 @@ +#ifndef _QTVARIABLE_ +#define _QTVARIABLE_ + +#include "qlparser/qtoperation.hh" +#include "raslib/minterval.hh" + +#ifndef CPPSTDLIB +#include <ospace/string.h> // STL<ToolKit> +#else +#include <string> +#endif + +#include <stdio.h> + +/* +* This file is part of rasdaman community. +* +* Rasdaman community 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 3 of the License, or +* (at your option) any later version. +* +* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>. +* +* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann / +rasdaman GmbH. +* +* For more information please see <http://www.rasdaman.org> +* or contact Peter Baumann via <baumann@rasdaman.com>. +*/ +/************************************************************* + * + * + * COMMENTS: + * + ************************************************************/ + + //@ManMemo: Module: {\bf qlparser} + +/*@Doc: + + The class stands for a MDD variable which corresponds to an element of the + tupel passed by the evaluate() method. + +*/ + + +class QtVariable : public QtOperation +{ + public: + /// constructor getting iterator variable name + QtVariable( const std::string& iteratorName ); + + /// constructor getting iterator variable name and load domain + QtVariable( const std::string& iteratorName, const r_Minterval& loadDomain ); + + /// destructor + virtual ~QtVariable(); + + /// test if the two nodes have an equal meaning in the query tree + virtual bool equalMeaning( QtNode* node ); + + /// creates a unique name for a common subexpression + virtual std::string getSpelling(); + + /// test if the edge to the parent node is of type mdd or atomic + virtual QtAreaType getAreaType(); + + /// optimizing load access + void optimizeLoad( QtTrimList* trimList ); + + /// method for evaluating the node + QtData* evaluate( QtDataList* inputList ) throw (ParseInfo); + + /// prints the tree + virtual void printTree( int tab, std::ostream& s = std::cout, QtChildType mode = QT_ALL_NODES ); + + /// prints the algebraic expression + virtual void printAlgebraicExpression( std::ostream& s = std::cout ); + + /// methods for iterator name + inline const std::string getIteratorName() const; + inline void setIteratorName( std::string& str ); + + /// method for loadDomain + inline const r_Minterval getLoadDomain() const; + + /// method for loadDomain + inline void setLoadDomain( r_Minterval& loadDomain ); + + /// method for oldLoadDomain + inline void setOldLoadDomain(); + + /// method for oldLoadDomain + inline const r_Minterval getOldLoadDomain(); + + /// method for LoadDomain + inline vector<bool>* getLoadDomainFlag(); + + /// method for identification of nodes + inline virtual const QtNodeType getNodeType() const; + + /// type checking of the subtree + virtual const QtTypeElement& checkType( QtTypeTuple* typeTuple = NULL ) throw (ParseInfo); + + private: + + /// attribute storing the iterator name + std::string iteratorName; + + /// minterval storing the minimal domain which is needed in the upper tree + r_Minterval loadDomain; + + /// unique backup of the loadDomain + r_Minterval oldLoadDomain; + + /// bitvector for discrimination of trimming and projections + vector<bool>* domainFlag; + + /// attribute storing the index of the variable's data element in the data vector + int dataIndex; + + /// attribute for identification of nodes + static const QtNodeType nodeType; +}; + +#include "qlparser/qtvariable.icc" + +#endif + |