Aggregation.h

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/*
 *  Copyright (C) 2010 - 2015 Leonid Kostrykin
 *
 *  Chair of Medical Engineering (mediTEC)
 *  RWTH Aachen University
 *  Pauwelsstr. 20
 *  52074 Aachen
 *  Germany
 *
 */
 
#ifndef AGGREGATION_H_6014714286
#define AGGREGATION_H_6014714286
 
#include <Carna/base/Association.h>
 
namespace Carna
{
 
namespace base
{
 
 
 
// ----------------------------------------------------------------------------------
// Aggregation
// ----------------------------------------------------------------------------------
 
template< typename AssociatedObjectType >
class Aggregation : public Association< AssociatedObjectType >
{
 
    Aggregation()
        : Association< AssociatedObjectType >( nullptr )
    {
    }
 
public:
 
    const static Aggregation< AssociatedObjectType > NULL_PTR;
 
    static Aggregation< AssociatedObjectType > createNullPtr()
    {
        return Aggregation< AssociatedObjectType >();
    }
 
    explicit Aggregation( AssociatedObjectType& associatedObject )
        : Association< AssociatedObjectType >( &associatedObject )
    {
    }
 
    Aggregation( const Aggregation< AssociatedObjectType >& other )
        : Association< AssociatedObjectType >( other.get() )
    {
    }
 
}; // Aggregation
 
 
template< typename AssociatedObjectType >
const Aggregation< AssociatedObjectType > Aggregation< AssociatedObjectType >::NULL_PTR
    ( Aggregation< AssociatedObjectType >::createNullPtr() );
 
 
 
}  // namespace Carna :: base
 
}  // namespace Carna
 
#endif // AGGREGATION_H_6014714286