---

CdbBdbSFolderPItr.cc

Go to the documentation of this file.

// File and Version Information:
//      $Id: CdbBdbSFolderPItr.cc,v 1.3 2002/09/23 22:41:09 gapon Exp $

/// The implementation of the CdbBdbSFolderPItr class.
/**
  * @see CdbBdbSFolderPItr
  */

#include "BaBar/BaBar.hh"

#include "CdbBdbShared/CdbBdbSFolderPItr.hh"

#include "CdbBase/CdbPathName.hh"
#include "CdbBdbShared/CdbBdbSFolderP.hh"

#include <assert.h>

CdbBdbSFolderPItr::CdbBdbSFolderPItr( const BdbRef(ooMap)& theMapRef ) :
    _isValid(false),
    _hasEverBeenAdvanced(false),
    _mapRef(theMapRef)
{ }

CdbBdbSFolderPItr::~CdbBdbSFolderPItr( )
{ }

CdbStatus
CdbBdbSFolderPItr::reset( )
{
    _isValid             = false;
    _hasEverBeenAdvanced = false;

    return CdbStatus::Success;
}

bool
CdbBdbSFolderPItr::next( )
{
    if( BdbIsNull(_mapRef)) {

      // There is only one ROOT directory at this catalog level.

        if( _hasEverBeenAdvanced )
            _isValid             = false;
        else {

            _value = CdbPathName::separator( );

            _isValid             = true;
            _hasEverBeenAdvanced = true;
        }

    } else {

      // Use the ooMap to get to the actual persistent folders and then
      // to their names.

        if( ! _hasEverBeenAdvanced ) _mapItr = _mapRef;

        if( _mapItr.next( )) {

            BdbHandle(CdbBdbSFolderP) folderH;
            folderH = (const BdbRef(CdbBdbSFolderP)&) (_mapItr->oid( ));

            if( ! BdbIsNull(folderH) && folderH.isValid( )) {

                _value = folderH->name( );

                _isValid             = true;
                _hasEverBeenAdvanced = true;
            }

        } else {

          // We're beyond the end of the collection

            _isValid             = false;
            _hasEverBeenAdvanced = false;
        }
    }
    return _isValid;
}

CdbBdbSFolderPItr::ValueType
CdbBdbSFolderPItr::value( )
{
    if( ! _isValid ) {
        assert( 0 );        // FATAL ERROR: Inproper use of the iterator!!!
        return 0;
    }
    return _value.head( );
}

bool
CdbBdbSFolderPItr::isValid( )
{
    return _isValid;
}

CdbBdbSFolderPItr::InterfaceType*
CdbBdbSFolderPItr::clone( ) const
{
  // Note, that the resulting iterator will always be at the initial
  // state, even if the current one is not. See more details at the
  // header file.

    return new CdbBdbSFolderPItr( _mapRef );
}

/////////////////
// End Of File //
/////////////////

---