RootKeyContainer.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/
 
//====================================================================
//        Root Database implementation
//--------------------------------------------------------------------
//
//        Package    : RootStorageSvc (The POOL project)
//
//        Author     : M.Frank
//====================================================================
#ifndef POOL_ROOTKEYCONTAINER_H
#define POOL_ROOTKEYCONTAINER_H 1
 
// Framework include files
#include "StorageSvc/DbDatabase.h"
#include "StorageSvc/DbContainerImp.h"
 
// Forward declarations
namespace CINT { class IOHandler; }
class TDirectory;
class TBuffer;
class TClass;
 
namespace pool  { 
  // Forward declarations
  union RootDataPtr;
  class RootKeyIOHandler;
 
  class RootKeyContainer : public DbContainerImp  {
    TDirectory*        m_dir;
    DbDatabase         m_dbH;
    RootDatabase*         m_rootDb;
    RootKeyIOHandler*  m_ioHandler;
    int                m_policy;
    int                m_ioBytes;
 
  protected:
    virtual DbStatus destroyObject(ActionList::value_type&);
    virtual DbStatus writeObject(ActionList::value_type&);
  public:
    RootKeyContainer();
    virtual ~RootKeyContainer();
    RootKeyContainer(const RootKeyContainer&) = delete;
    RootKeyContainer& operator=(const RootKeyContainer&) = delete;
    virtual DbStatus close();
    virtual DbStatus open(DbDatabase& dbH,
                          const std::string& nam, 
                          const DbTypeInfo* info,
                          DbAccessMode mod);
    virtual DbStatus isShapeSupported(const DbTypeInfo* /* typ */ ) const
    { return true;    }
    virtual DbStatus select(DbSelect& criteria);
    virtual uint64_t size();
    virtual uint64_t nextRecordId();
    virtual DbStatus fetch(DbSelect&      sel);
    virtual DbStatus fetch( const Token::OID_t& linkH, Token::OID_t& stmt);
 
 
    virtual DbStatus loadObject( void** ptr, ShapeH shape, 
                                 Token::OID_t& oid);
 
    virtual DbStatus load( void** ptr, ShapeH shape,
                           const Token::OID_t& linkH,
                           Token::OID_t& oid,
                           bool          any_next);
 
 
    virtual DbStatus getOption(DbOption& opt);
 
 
    virtual DbStatus setOption(const DbOption& opt);
 
 
    virtual DbStatus transAct(Transaction::Action action);
  };
}
#endif //POOL_ROOTKEYCONTAINER_H