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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/qtmddaccess.hh | |
download | rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.gz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.xz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.zip |
Initial commitv8.0
Diffstat (limited to 'qlparser/qtmddaccess.hh')
-rw-r--r-- | qlparser/qtmddaccess.hh | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/qlparser/qtmddaccess.hh b/qlparser/qtmddaccess.hh new file mode 100644 index 0000000..433f805 --- /dev/null +++ b/qlparser/qtmddaccess.hh @@ -0,0 +1,114 @@ +#ifndef _QTMDDACCESS_ +#define _QTMDDACCESS_ + +#include "qlparser/qtoncstream.hh" + +#ifndef CPPSTDLIB +#include <ospace/string.h> // STL<ToolKit> +#else +#include <string> +#endif + +// forward declarations +class MDDColl; +class MDDCollIter; + +/* +* 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: + +This class encapsulates a MDDCollection. It gives access to the elements +through the ONC protocol. The list returned by next() consists of just one +element. + +*/ + +class QtMDDAccess : public QtONCStream +{ + public: + /// constructor getting the collection name if no iterator name is specified + QtMDDAccess( const std::string& collectionName ); + + /// constructor getting collection and iterator name + QtMDDAccess( const std::string& collectionName, const std::string& iteratorName ); + + /// destructor + virtual ~QtMDDAccess(); + + //@Man: Operations of the ONC protocol + //@{ + /// + void open(); + /// + QtDataList* next(); + /// + void close(); + /// + void reset(); + //@} + + /// 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 ); + + /// method for identification of nodes + inline virtual const QtNodeType getNodeType() const; + + /// method for retrieving the current MDD collection + inline MDDColl* getMDDColl(); + + /// type checking + virtual const QtTypeTuple& checkType(); + + private: + /// name of the MDD collection + std::string collectionName; + + /// name of the iterator + std::string iteratorName; + + /// pointer to the MDD collection + MDDColl* mddColl; + + /// pointer to the curent iterator + MDDCollIter* mddIter; + + /// attribute for identification of nodes + static const QtNodeType nodeType; +}; + +#include "qlparser/qtmddaccess.icc" + +#endif + |