| # Gaudi Framework, version v21r7p1 |

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# PoolDbCnvFactory.h

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    00001 // $Id: PoolDbCnvFactory.h,v 1.3 2006/11/22 18:10:43 hmd Exp $
    00002 //====================================================================
    00003 //      IPoolDbCnvFactory and PoolDbCnvFactory definition
    00004 //--------------------------------------------------------------------
    00005 //
    00006 //      Author     : M.Frank
    00007 //====================================================================
    00008 #ifndef POOLDB_POOLDBCNVFACTORY_H
    00009 #define POOLDB_POOLDBCNVFACTORY_H 1
    00010 #include "GaudiKernel/ICnvFactory.h"
    00011 #include "GaudiKernel/FactoryTable.h"
    00012 #include "GaudiKernel/System.h"
    00013 #include "StorageSvc/DbType.h"
    00014
    00023 class GAUDI_API IPoolDbCnvFactory: virtual public IInterface {
    00024 public:
    00026   DeclareInterfaceID(IPoolDbCnvFactory,2,0);
    00035   virtual IConverter* instantiate(long typ,
    00036                                   const CLID& clid,
    00037                                   ISvcLocator *svcloc )  const = 0;
    00038 };
    00039
    00048 template <class ConcreteConverter, int i>
    00049 class GAUDI_API PoolDbCnvFactory : public implements2<ICnvFactory, IPoolDbCnvFactory>
    00050 {
    00052   mutable std::string m_typeName;
    00053 public:
    00055   typedef ConcreteConverter converter_t;
    00056
    00058   PoolDbCnvFactory()  {
    00059     m_typeName = "";
    00060     FactoryTable::instance()->addFactory( this );
    00061   }
    00063   virtual ~PoolDbCnvFactory()  {  }
    00065   virtual const std::string& typeName()  const    {
    00066     // The name MUST be set here, not in the constructor.
    00067     // At construction time it is not yet clear if we run from
    00068     // an executable or a DLL.
    00069     if ( m_typeName == "" )  {
    00070       if ( System::moduleType() == System::SHAREDLIB )  {
    00071         m_typeName  = System::moduleName();
    00072         m_typeName += ":";
    00073       }
    00074       // Get the class name using the RTTI.
    00075       m_typeName += System::typeinfoName( typeid(ConcreteConverter) );
    00076     }
    00077     return m_typeName;
    00078   }
    00080   virtual const CLID& objType()  const;
    00082   virtual const long repSvcType()   const
    00083   {    return pool::POOL_StorageType.type();  }
    00084   virtual unsigned long addRef()  const     {     return 1;           }
    00085   virtual unsigned long release()   const   {     return 1;           }
    00086   virtual const std::string& ident() const  {     return typeName();  }
    00087   // IInterface implementation
    00088   virtual unsigned long addRef()            {     return 1;           }
    00089   virtual unsigned long release()           {     return 1;           }
    00090
    00099   virtual IConverter* instantiate(long typ,
    00100                                   const CLID& /* clid */,
    00101                                   ISvcLocator *svcloc)  const
    00102   {    return new ConcreteConverter(typ, svcloc);  }
    00103
    00105   virtual IConverter* instantiate( ISvcLocator* /* svcloc */ )  const
    00106   {    return 0;  }
    00107
    00109   virtual IInterface* instantiate( IInterface* /* parent */ ) const
    00110   {    return 0;  }
    00111
    00112 };
    00113 #endif    // POOLDB_POOLDBCNVFACTORY_H