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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/qtcondenseop.hh | |
download | rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.gz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.xz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.zip |
Initial commitv8.0
Diffstat (limited to 'qlparser/qtcondenseop.hh')
-rw-r--r-- | qlparser/qtcondenseop.hh | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/qlparser/qtcondenseop.hh b/qlparser/qtcondenseop.hh new file mode 100644 index 0000000..d1c3e8e --- /dev/null +++ b/qlparser/qtcondenseop.hh @@ -0,0 +1,131 @@ +#ifndef _QTCONDENSEOP_ +#define _QTCONDENSEOP_ + +#ifndef CPPSTDLIB +#include <ospace/string.h> // STL<ToolKit> +#else +#include <string> +#endif + +#include "qlparser/qtbinaryoperation.hh" + +#include "catalogmgr/ops.hh" +#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 represents the root of a cond expression. + +*/ + +class QtCondenseOp : public QtBinaryOperation +{ + public: + /// constructor getting iterator, minterval exp, cell exp, and cell condition exp (optional) + QtCondenseOp( Ops::OpType newOperation, + const std::string& initIteratorName, + QtOperation* mintervalExp, + QtOperation* cellExp, + QtOperation* condExp = NULL ); + + /// virtual destructor + ~QtCondenseOp(); + + /// return childs of the node + virtual QtNodeList* getChilds( QtChildType flag ); + + /// test if the two nodes have an equal meaning in a subtree + virtual bool equalMeaning( QtNode* node ); + + /// creates a unique name for a common subexpression + virtual std::string getSpelling(); + + /// method for query rewrite + virtual void setInput( QtOperation* inputOld, QtOperation* inputNew ); + + /// optimizing load access + void optimizeLoad( QtTrimList* trimList ); + + /// simplifies the tree + virtual void simplify(); + + /// returns FALSE saying that the operation IS NOT commutative + virtual bool isCommutative() const; + + /// method for evaluating the node + QtData* evaluate( QtDataList* inputList ); + /** + */ + + /// 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 ); + + //@Man: Read/Write methods: + //@{ + /// + + /// + inline QtOperation* getCondOp(); + + /// + //@} + + /// method for identification of nodes + inline virtual const QtNodeType getNodeType() const; + + /// type checking of the subtree + virtual const QtTypeElement& checkType( QtTypeTuple* typeTuple = NULL ); + + private: + /// attribute for identification of nodes + static const QtNodeType nodeType; + + /// attribute storing the iterator name + std::string iteratorName; + + /// attribute storing optional cell condition expression + QtOperation* condOp; + + /// attribute storing condensing operation + Ops::OpType operation; +}; + + +#include "qlparser/qtcondenseop.icc" + +#endif + |