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CdbBdbSConditionAtClusterPItr.cc

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// File and Version Information:
//      $Id: CdbBdbSConditionAtClusterPItr.cc,v 1.3 2002/09/23 22:41:07 gapon Exp $

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

#include "BaBar/BaBar.hh"

#include "CdbBdbShared/CdbBdbSConditionAtClusterPItr.hh"

#include <assert.h>

CdbBdbSConditionAtClusterPItr::CdbBdbSConditionAtClusterPItr( const BdbRef(CdbBdbSClusterP)& theClusterRef ) :
    _isValid(false),
    _hasEverBeenAdvanced(false),
    _clusterRef(theClusterRef)
{ }

CdbBdbSConditionAtClusterPItr::~CdbBdbSConditionAtClusterPItr( )
{ }

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

    return CdbStatus::Success;
}

bool
CdbBdbSConditionAtClusterPItr::next( )
{
    if( ! _hasEverBeenAdvanced ) _clusterRef->_conditions( _itr );

    if( _itr.next( )) {
        _valueRef = _itr;

        _isValid             = true;
        _hasEverBeenAdvanced = true;

    } else {

      // We're beyond the end of the collection

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

CdbBdbSConditionAtClusterPItr::ValueType
CdbBdbSConditionAtClusterPItr::value( )
{
    if( ! _isValid ) {
        assert( 0 );        // FATAL ERROR: Inproper use of the iterator!!!
        return 0;
    }
    return _valueRef;
}

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

CdbBdbSConditionAtClusterPItr::InterfaceType*
CdbBdbSConditionAtClusterPItr::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 CdbBdbSConditionAtClusterPItr( _clusterRef );
}

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// End Of File //
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