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DbContainerConverter.h

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//====================================================================
//      DbContainerConverter definition
//--------------------------------------------------------------------
//
//      Package    : System ( The LHCb Offline System)
//
//  Description: Generic Db data converter for container objects
//
//      Author     : M.Frank
//====================================================================
#ifndef DBCNV_DBCONTAINERCONVERTER_H
#define DBCNV_DBCONTAINERCONVERTER_H
// $Header: /nfs/slac/g/glast/ground/cvs/GaudiDb/GaudiDb/DbContainerConverter.h,v 1.1.1.1 2001/04/18 21:13:34 tlindner Exp $

// Framework include files
#include "GaudiKernel/IObjectFactory.h"
#include "DbGenericConverter.h"

// Forward declarations
class IContainedObjectCreator;

class DbContainerConverter : public DbGenericConverter     {
  friend CnvFactory<DbContainerConverter>;
protected:
  void*   m_factories;
  DbContainerConverter(const CLID& clid, IOODataBase* db, ISvcLocator* svc);
  virtual ~DbContainerConverter();
  virtual StatusCode doTransientUpdate( dbHandle<DbDefObject>& objH, DataObject* pObject);
  virtual StatusCode doPersistentUpdate( dbHandle<DbDefObject>& objH, const DataObject* pObject);
  ContainedObject* createContained(const CLID& clid);
  IContainedObjectFactory* locateCreator(const CLID& clid);
  IContainedObjectFactory* objCreator(const CLID& clid);
  StatusCode checkObject( ContainedObject* pObj, const CLID& clid );
};

template <class T> class DbOOMsContainerConverter : public DbContainerConverter   {
  friend DbOOMsCnvFactory< DbOOMsContainerConverter < T > >;
public:
  DbOOMsContainerConverter(IOODataBase* db, ISvcLocator* svc) 
    : DbContainerConverter(classID(), db, svc)
  {
  }
  virtual ~DbOOMsContainerConverter()    {
  }
  virtual DataObject* createTransient()  {
    return new T();
  }
  static const CLID& classID()    {
    return T::classID();
  }
};

#define _ImplementContainerConverters(Transient)                                  \
/*  Declaration of the Db converter factory for ObjectVectors:*/                  \
static DbOOMsCnvFactory<DbOOMsContainerConverter< ObjectVector < Transient > > >  \
  s_##DbOOMs##Transient##VectorFactory;                                           \
const ICnvFactory& DbOOMs##Transient##VectorCnvFactory =                          \
  s_##DbOOMs##Transient##VectorFactory;                                           \
/*  Declaration of the Db converter factory for ObjectLists:  */                  \
static DbOOMsCnvFactory<DbOOMsContainerConverter< ObjectList < Transient > > >    \
  s_##DbOOMs##Transient##ListFactory;                                             \
const ICnvFactory& DbOOMs##Transient##ListCnvFactory =                            \
  s_##DbOOMs##Transient##ListFactory;

#define _ImplementNameSpaceContainerConverters(NameSpace,Transient)                             \
/*  Declaration of the Db converter factory for ObjectVectors:*/                                \
static DbOOMsCnvFactory<DbOOMsContainerConverter< ObjectVector < NameSpace::Transient > > > \
  s_##DbOOMs##NameSpace##Transient##VectorFactory;                                              \
const ICnvFactory& DbOOMs##NameSpace##Transient##VectorCnvFactory =                             \
  s_##DbOOMs##NameSpace##Transient##VectorFactory;                                              \
/*  Declaration of the Db converter factory for ObjectLists:  */                                \
static DbOOMsCnvFactory<DbOOMsContainerConverter< ObjectList < NameSpace::Transient > > >   \
  s_##DbOOMs##NameSpace##Transient##ListFactory;                                                \
const ICnvFactory& DbOOMs##NameSpace##Transient##ListCnvFactory =                               \
  s_##DbOOMs##NameSpace##Transient##ListFactory;

#endif    // DBCNV_DBCONTAINERCONVERTER_H

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