TestObjectVersion.cpp

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#include <Gaudi/Functional/Consumer.h>
#include <Gaudi/Functional/Producer.h>
#include <GaudiKernel/KeyedContainer.h>
 
namespace Gaudi {
  namespace Examples {
    namespace TestObjectVersion {
      // using ObjectType = DataObject;
      using ObjectType = KeyedContainer<KeyedObject<std::size_t>>;
 
      struct CreateObject : Gaudi::Functional::Producer<ObjectType()> {
        CreateObject( const std::string& name, ISvcLocator* svcLoc )
            : Producer( name, svcLoc, KeyValue( "OutputLocation", "/Event/SomeData" ) ) {}
        ObjectType operator()() const override {
          ObjectType o;
          o.setVersion( 42 );
          info() << "Created object with version " << static_cast<int>( o.version() ) << endmsg;
          return o;
        }
      };
      DECLARE_COMPONENT( CreateObject )
 
      struct UseObject : Gaudi::Functional::Consumer<void( const ObjectType& )> {
        UseObject( const std::string& name, ISvcLocator* svcLoc )
            : Consumer( name, svcLoc, KeyValue( "InputLocation", "/Event/SomeData" ) ) {}
        void operator()( const ObjectType& o ) const override {
          info() << "Retrieved object with version " << static_cast<int>( o.version() ) << endmsg;
          if ( o.version() != 42 ) throw GaudiException( "Wrong object version", name(), StatusCode::FAILURE );
        }
      };
      DECLARE_COMPONENT( UseObject )
    } // namespace TestObjectVersion
  }   // namespace Examples
} // namespace Gaudi