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/BdbTrees/BdbMetaDataFloatIter.hh

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//--------------------------------------------------------------------------
// File and Version Information:
//      $Id: BdbMetaDataFloatIter.hh,v 1.1 1998/06/26 23:55:01 quarrie Exp $
//
// Description:
//      Class BdbMetaDataFloatIter. Interface definition file for 
//      the float iterator for the transient metadata.
//
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Author List:
//      David R. Quarrie                Original Author
//
// Copyright Information:
//      Copyright (C) 1998              Lawrence Berkeley Laboratory
//
//------------------------------------------------------------------------

#ifndef BDBMETADATAFLOATITER_HH
#define BDBMETADATAFLOATITER_HH

//-----------------
// BaBar Headers --
//-----------------
#include "BaBar/BaBar.hh"

//-------------------------------
// Collaborating Class Headers --
//-------------------------------
#include "BdbTrees/BdbMetaData.hh"

//              ---------------------
//              -- Class Interface --
//              ---------------------
 
class BdbMetaDataFloatIter {

//--------------------
// Instance Members --
//--------------------

public:

    // Constructors
    BdbMetaDataFloatIter( BdbMetaData& theData )
    {
        _data  = theData;
        _index = -1;
    }

  // Destructor
    virtual ~BdbMetaDataFloatIter()
    {
    }

    // Operations

    void bind( BdbMetaData& theData )
    {
        _data  = theData;
        _index = -1;
    }

    d_ULong count( )
    {
        return _data.numFloats( );
    }

    BdbStatus next( d_Float& value )
    {
        _index++;
        BdbStatus result = _data.getFloat( value, (d_ULong)_index );
        return result;
    }

    const char* key( )
    {
        return _data.getFloatKey( (d_ULong)_index );
    }

    void reset( )
    {
        _index = -1;
    }

private:
    BdbMetaData _data;
    d_Long      _index;

};

#endif

 

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