//--------------------------------------------------------------------------
// File and Version Information:
// 	$Id: AppXXXStream.hh,v 1.3 2002/01/28 00:10:48 rico Exp $
//
// Description:
//	The XXX output stream class; derives from FileOutputStream
//
// Author List:
//	Kevin McFarland            Original Author
//
//------------------------------------------------------------------------

#ifndef APPXXXSTREAM_HH
#define APPXXXSTREAM_HH
//-----------------------
// Experiment Headers --
//-----------------------
#include "BaBar/Experiment.hh"

//-------------
// C Headers --
//-------------
#include <cstddef>

//---------------
// C++ Headers --
//---------------
#ifndef CDF
#include <fstream>
#else
   #ifdef USE_CDFEDM2
     class AbstractFile ;
   #else
     class TRY_Abstract_File;
   #endif
#endif

//----------------------
// Base Class Headers --
//----------------------
#include "Framework/AppStream.hh"

//		---------------------
// 		-- Class Interface --
//		---------------------
 
class AppXXXStream : public AppStream {

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

public:

    // Constructors
    AppXXXStream( 
        const char* const theName, 
        const char* const theFile        = NULL, 
        const char* const theDescription = NULL );

    // Destructor
    virtual ~AppXXXStream( );
    
    // Selectors (const)
    const char* filename( ) const;
    bool        isOpen  ( ) const;

    // Modifiers
    void setFilename( const char* const theName );

    // Operations
    bool open ( );
    void close( );
    
protected:

    bool writeToDestination( AbsEvent*& aNode );

#ifndef CDF
    fstream            _file;
#else
      //note the change in lifetime, for BABAR the file object lives for
      //the life of the AppFileInputModule, CDF's files are virtual because
      //we want their types to be run-time selectable.  In order to be able
      //to change file types between opens and closes the objects
      //get created when the file is opened and deleted when closed.
#ifdef USE_CDFEDM2
    AbstractFile*         _file ;
#else
    TRY_Abstract_File*    _file ;
#endif // USE_CDFEDM2

#endif
};

#endif