In This Package:

DybNextEntryPolicyTool.h

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#ifndef DYBNEXTENTRYPLICYTOOL
#define DYBNEXTENTRYPLICYTOOL

#include "GaudiAlg/GaudiTool.h"
#include "DybIO/IDybEntryPolicyTool.h"
#include "GaudiKernel/RndmGenerators.h"
#include <string>

class IRootIOSvc;
class IConversionSvc;
class RootInputStream;
class PerHeaderObject;

class DybNextEntryPolicyTool : public GaudiTool,
                               virtual public IDybEntryPolicyTool
{
public:
    DybNextEntryPolicyTool(const std::string& type,
                           const std::string& name,
                           const IInterface* parent);

    virtual ~DybNextEntryPolicyTool();
    
    StatusCode queryInterface( const InterfaceID& riid, void** ppvIf );
    
    virtual StatusCode initialize();

    // Set the max entry number for this policy
    int set_entries(int entries);

    // IDybEntryPolicyTool interface
    int next_entry();

private:
    int m_entries;
    int m_entry, m_step;
    // For a root tree entry number start with 0 to entries-1.
    
    std::string m_modeName;
    int         m_mode;
    // 1 - random
    // 2 - sequential

    Rndm::Numbers m_rand;
    int m_last;
};

#endif  // DYBNEXTENTRYPOLICYTOOL

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