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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/qtupdate.hh | |
download | rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.gz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.xz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.zip |
Initial commitv8.0
Diffstat (limited to 'qlparser/qtupdate.hh')
-rw-r--r-- | qlparser/qtupdate.hh | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/qlparser/qtupdate.hh b/qlparser/qtupdate.hh new file mode 100644 index 0000000..429a6e2 --- /dev/null +++ b/qlparser/qtupdate.hh @@ -0,0 +1,119 @@ +#ifndef __QTUPDATE_HH__ +#define __QTUPDATE_HH___ + +#include "qlparser/qtexecute.hh" +#include "qlparser/qtoncstream.hh" +#include "qlparser/qtoperation.hh" + +#include <iostream> + +/* +* 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: + +*/ + +class QtUpdate : public QtExecute +{ + public: + /// constructor getting target, domain, and source expressions of the update + QtUpdate( QtOperation* initUpdateTarget, QtOperation* initUpdateDomain, QtOperation* initUpdateSource ); + + /// virtual destructor + virtual ~QtUpdate(); + + /// method for evaluating the node + virtual int evaluate(); + + /// return childs of the node + virtual QtNodeList* getChilds( QtChildType flag ); + + /// 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: + //@{ + /// + /// + void setStreamInput( QtONCStream* newInput ); + /// + /// returns updateTarget + QtOperation* getUpdateTarget(); + /// returns updateDomain + QtOperation* getUpdateDomain(); + ///returns updateSource + QtOperation* getUpdateSource(); + ///returns input + QtONCStream* getInput(); + //@} + + /// method for identification of nodes + inline virtual const QtNodeType getNodeType() const; + + /// method for query rewrite + inline virtual void setInput( QtOperation* child, QtOperation* input); + + /// pre optimization + //virtual void preOptimize(); + /** + Pre-Optimization step is passed to the input streams. + */ + + /// type checking + virtual void checkType(); + + private: + /// one input stream + QtONCStream* input; + + /// target expression + QtOperation* updateTarget; + + /// target domain expression + QtOperation* updateDomain; + + /// target expression + QtOperation* updateSource; + + /// attribute for identification of nodes + static const QtNodeType nodeType; +}; + +#include "qlparser/qtupdate.icc" + +#endif + + + |