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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/qtscalardata.hh | |
download | rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.gz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.xz rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.zip |
Initial commitv8.0
Diffstat (limited to 'qlparser/qtscalardata.hh')
-rw-r--r-- | qlparser/qtscalardata.hh | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/qlparser/qtscalardata.hh b/qlparser/qtscalardata.hh new file mode 100644 index 0000000..9ef33cb --- /dev/null +++ b/qlparser/qtscalardata.hh @@ -0,0 +1,137 @@ +#ifndef _QTSCALARDATA_HH_ +#define _QTSCALARDATA_HH_ + +#ifndef CPPSTDLIB +#include <ospace/string.h> // STL<ToolKit> +#else +#include <string> +#endif + +#include "qlparser/qtdata.hh" +#include "catalogmgr/typefactory.hh" + + +/* +* 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 abstract class represents a scalar data handled by the + query tree. It can either be atomic (\Ref{QtAtomicData}) + or complex (\Ref{QtComplexData}). + +*/ + +class QtScalarData : public QtData +{ + public: + /// default constructor + QtScalarData(); + + /// copy constructor + QtScalarData( const QtScalarData& obj ); + + /// virtual destructor + virtual ~QtScalarData(); + + //@Man: Read/Write methods: + //@{ + /// + + /// returns data type + virtual QtDataType getDataType() const; + + /// returns true meaning that the data is of type scalar + virtual bool isScalarData() const; + + /// returns a pointer to the value type + inline const BaseType* getValueType() const; + + /// sets the value type + inline void setValueType( const BaseType* newType ); + + /// returns a pointer to the internal character representation + inline const char* getValueBuffer() const; + + /// sets the value buffer + inline void setValueBuffer( char* buffer ); + + /// returns a null-terminated string describing the type structure + virtual char* getTypeStructure() const; + /** + The string pointer has to be free using free() by the caller. + */ + + /// + //@} + + /// compares data content + virtual bool equal( const QtData* obj ) const; + + /// returns content dependent string representation + virtual std::string getSpelling() const; + + /// print status of the object to the specified stream + virtual void printStatus( std::ostream& stream = std::cout ) const; + + protected: + /// pointer to the value type + const BaseType* valueType; + + /// pointer to the value buffer + char* valueBuffer; +}; + +#include "qlparser/qtscalardata.icc" + +#endif + + + + + + + + + + + + + + + + + + + + + + |