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CdbRooNTupleBaseR.rdl

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#ifndef CDBROOTABLE_NTUPLE_BASE_R_RDL
#define CDBROOTABLE_NTUPLE_BASE_R_RDL

// File and Version Information:
//      $Id: CdbRooNTupleBaseR.rdl,v 1.2 2005/01/09 19:33:17 gapon Exp $

#include "CdbRoo/CdbRooObjectR.hh"

#include <string>
#include <vector>

/// An abstract base class for persistent n-tuples
/**
  * This class carries the configuration and metadata information about specific
  * n-tuples. This information includes:
  *
  *   - the number of elements in a row (configuration)
  *   - a name of a tuple (metadata)
  *   - a description of a tuple (metadata)
  *
  * RESTRICTIONS:
  *
  *   (1) Columns are numbered beginning from 0.
  *
  *   (2) The number of columns passed to the constructor(s) of the class must
  *       be greater than 0. Otherwise an assertion in the constructor(s) would
  *       be imminent.
  */
class CdbRooNTupleBaseR : public CdbRooObjectR {

protected:

  /// Default constructor
  /**
    * Is useless, but it's required by the ROOT I/O streamers. Any attempts to use an object
    * constructed in this way would result in the corresponding errors reported.
    */
    CdbRooNTupleBaseR( );

  /// Normal constructor
  /**
    * All parameters are required
    */
    CdbRooNTupleBaseR( UInt_t                          theNumberOfColumns,
                       const std::string&              theName,
                       const std::string&              theDescription,
                       const std::vector<std::string>& theColumnNames );

public:

  /// Destructor

    virtual ~CdbRooNTupleBaseR( );

  /// Get the number of columns

    UInt_t columns( ) const { return _columns; }

  /// Get the name

    const std::string& name( ) const { return _name; }

  /// Get the description

    const std::string& description( ) const { return _description; }

  /// Get column names

    void column_names( std::vector<std::string>& theColumnNames ) const { theColumnNames = _columnNames; }

private:

    UInt_t _columns;            // Number of columns

    std::string _name;          // The name of the tuple
    std::string _description;   // The description of the tuple

    std::vector<std::string> _columnNames;

    ClassDef(CdbRooNTupleBaseR,1);
};

#endif /* CDBROOTABLE_NTUPLE_BASE_R_RDL */

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