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DbFederationObj.h

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//====================================================================
//      DbFederation object definition
//--------------------------------------------------------------------
//
//      Package    : DbCnv ( The LHCb Offline System)
//      Author     : M.Frank
//====================================================================
#ifndef DBCNV_DBFEDERATIONOBJ_H
#define DBCNV_DBFEDERATIONOBJ_H 1

// Framework include files
#include "GaudiDb/DbAccessObj.h"
#include "GaudiDb/DbFederation.h"

class IOODataBase;
class DbSession;
class DbFederation;
class DbDataBase;
template <class T> class dbHandle;
//template <> class dbHandle<DbSession>;
//template <> class dbHandle<DbFederation>;
//template <> class dbHandle<DbDataBase>;

class DbFederation : public  DbAccessObj<std::string, DbDataBase >  {
  friend DbFederationImpl;
  friend dbHandle<DbFederation>;
private:
  IDbFederation*              m_info;
  mutable dbHandle<DbSession> m_session;
  IOODataBase*                m_dbOOMs;
  IMessageSvc*                m_msgSvc;

private:
  DbFederation(const dbHandle<DbSession>& session, const std::string& name, DbAccessMode mode = DbOOMs::READ);
  virtual ~DbFederation();
  dbHandle<DbSession>& session();
  const dbHandle<DbSession>& session()  const;
  IDbFederation* info()  const;
  IOODataBase* db();
  IMessageSvc* msgSvc();
  bool existsDbase( const std::string& name )   const;
  DbResult closeDataBases()  const;
  DbResult close()    const;
  DbResult open()   const;
};

// Access session handle
inline dbHandle<DbSession>& DbFederation::session()  {
  return m_session;
}

// Access session handle (CONST)
inline const dbHandle<DbSession>& DbFederation::session()  const  {
  return m_session;
}

// Access to technology dependent implementation
inline IDbFederation* DbFederation::info()  const    {
  return m_info;
}

// Allow access to the database implementation
inline IOODataBase* DbFederation::db()   {
  return m_dbOOMs;
}

// Allow access to the message service
inline IMessageSvc* DbFederation::msgSvc()   {
  return m_msgSvc;
}
#endif // DBCNV_DBFEDERATIONOBJ_H

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