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#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
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