Event/RootCnvSvc/include/RootCnvSvc/RootEvtIterator.h

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#ifndef GLASTCNV_GLASTEVENTSELECTORITERATOR_H
#define GLASTCNV_GLASTEVENTSELECTORITERATOR_H 1
 
#include "GaudiKernel/IEvtSelector.h"
#include "GaudiKernel/ISvcLocator.h"
#include "GaudiKernel/Service.h"
 
#include <list>
#include <stdio.h>
#include <string>
 
/** @class RootEvtIterator
 * @brief implements the IEvtSelector::Iterator interface
 *
 * $Header: /bes/bes/BossCvs/Event/RootCnvSvc/RootCnvSvc/RootEvtIterator.h,v 1.8 2008/01/09
 * 00:05:48 codeman Exp $
 */
class RootEvtIterator : public IEvtSelector::Iterator {
public:
  friend class RootEvtSelector;
  RootEvtIterator() {}
  RootEvtIterator( const IEvtSelector* glastEvtSel )
      : m_glastEvtSel( glastEvtSel ), m_recId( 0 ) {}
  RootEvtIterator( const IEvtSelector* glastEvtSel, int recId )
      : m_glastEvtSel( glastEvtSel ) {
    m_recId = recId;
  }
  virtual ~RootEvtIterator() {}
  virtual IOpaqueAddress* operator*() const { return m_glastEvtSel->reference( *this ); }
  virtual IOpaqueAddress* operator->() const { return m_glastEvtSel->reference( *this ); }
  virtual IEvtSelector::Iterator& operator++() { return m_glastEvtSel->next( *this ); }
  virtual IEvtSelector::Iterator& operator--() { return m_glastEvtSel->previous( *this ); }
  virtual IEvtSelector::Iterator& operator++( int ) { return m_glastEvtSel->next( *this ); }
  virtual IEvtSelector::Iterator& operator--( int ) {
    return m_glastEvtSel->previous( *this );
  }
  virtual bool operator==( const IEvtSelector::Iterator& it ) const {
    const RootEvtIterator* glastIt = dynamic_cast<const RootEvtIterator*>( &it );
    return ( ( m_recId == glastIt->m_recId ) );
  }
  virtual bool operator!=( const IEvtSelector::Iterator& it ) const {
    const RootEvtIterator* glastIt = dynamic_cast<const RootEvtIterator*>( &it );
    return ( ( m_recId != glastIt->m_recId ) );
  }
 
private:
  /// pointer to RootEvtSelector
  const IEvtSelector* m_glastEvtSel;
  /// counts number of event
  int m_recId;
};
 
#endif // GLASTEvtIterator_H