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DbSessionObj.h

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//====================================================================
//      DbSession object definition
//--------------------------------------------------------------------
//
//      Package    : System ( The LHCb Offline System)
//
//  Description: Generic data persistency
//
//      Author     : M.Frank
//  History    :
// +---------+----------------------------------------------+---------
// |    Date |                 Comment                      | Who     
// +---------+----------------------------------------------+---------
// | 11/07/99| Initial version                              | MF
// +---------+----------------------------------------------+---------
//====================================================================
#ifndef DBCNV_DBSESSIONOBJ_H
#define DBCNV_DBSESSIONOBJ_H 1

// Framework includes
#include "GaudiDb/DbHandle.h"
#include "GaudiDb/DbSession.h"
#include "GaudiDb/DbAccessObj.h"

// Forward declarations
class IOODataBase;
class IDbSession;
template <class T> class dbHandle;

class DbSession  : public DbAccessObj<std::string, DbFederation >  {
  friend DbSessionImpl;
  friend dbHandle<DbSession>;
private:
  IOODataBase*            m_dbOOMs;
  IMessageSvc*            m_msgSvc;
  IDbSession*             m_info;
private:
  DbSession(IOODataBase* db, IMessageSvc* msg, unsigned char type);
  virtual ~DbSession();
  long addRef() const;
  long release()  const;
  IDbSession* info();
  IOODataBase* db();
  IMessageSvc* msgSvc();
  DbResult open(DbAccessMode mode = DbOOMs::READ);
  DbResult close();
};

// inline code

inline long DbSession::addRef() const  {
  return ++m_refCount;
}

inline long DbSession::release()  const   {
  long count = --m_refCount;
  if ( m_refCount <= 0 )    {
    delete this;
  }
  return count;
}

inline IDbSession* DbSession::info()   {
  return m_info;
}

inline IOODataBase* DbSession::db()   {
  return m_dbOOMs;
}

inline IMessageSvc* DbSession::msgSvc()   {
  return m_msgSvc;
}

#endif // DBCNV_DBSESSIONOBJ_H

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