RootEvtSelector.h

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// $Id: RootEvtSelector.h,v 1.3 2010-08-24 23:30:32 frankb Exp $
//====================================================================
//  RootTreeEvtSelector.h
//--------------------------------------------------------------------
//
//  Package    : RootCnv
//
//  Description: The RootEvtSelector component is able
//               to produce a list of event references given a set of "selection
//               criteria".
//
//  Author     : M.Frank
//  Created    : 4/01/99
//
//====================================================================
// $Header: /afs/cern.ch/project/cvs/reps/lhcb/Online/RootCnv/src/RootEvtSelector.h,v 1.3 2010-08-24 23:30:32 frankb Exp $

#ifndef GAUDIROOTCNV_ROOTEVTSELECTOR_H
#define GAUDIROOTCNV_ROOTEVTSELECTOR_H 1

// Framework include files
#include "GaudiKernel/Service.h"
#include "GaudiKernel/IEvtSelector.h"

/*
 *  Gaudi namespace declaration
 */
namespace Gaudi {

  // Forward declarations
  class RootCnvSvc;

  class GAUDI_API RootEvtSelector : public extends1<Service, IEvtSelector> {

    StatusCode error(const std::string& msg)  const;
  public:

    RootEvtSelector(const std::string& name, ISvcLocator* svcloc);

    virtual ~RootEvtSelector() {}

    virtual StatusCode initialize();

    virtual StatusCode finalize();


    virtual StatusCode createContext(Context*& refpCtxt) const;

    virtual StatusCode last(Context& refContext) const;


    virtual StatusCode next(Context& refCtxt) const;


    virtual StatusCode next(Context& refCtxt,int jump) const;


    virtual StatusCode previous(Context& refCtxt) const;


    virtual StatusCode previous(Context& refCtxt,int jump) const;


    virtual StatusCode rewind(Context& refCtxt) const;


    virtual StatusCode createAddress(const Context& refCtxt, IOpaqueAddress*&) const;


    virtual StatusCode releaseContext(Context*& refCtxt) const;

    virtual StatusCode resetCriteria(const std::string& cr,Context& c)const;
  protected:
    // Data Members
    mutable RootCnvSvc*             m_dbMgr;
    CLID                            m_rootCLID;
    std::string                     m_persName;
    std::string                     m_cnvSvcName;
    std::string                     m_rootName;
    std::string                     m_criteria;
    std::string                     m_dummy;
  };
}
#endif  // GAUDIROOTCNV_ROOTEVTSELECTOR_H