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// ***********************************************************************
//
// Teuchos: Common Tools Package
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#ifndef TEUCHOS_ABSTRACT_FACTORY_HPP
#define TEUCHOS_ABSTRACT_FACTORY_HPP
#include "Teuchos_RCP.hpp"
namespace Teuchos {
/** \brief Simple, universal "Abstract Factory" interface for the
* dynamic creation of objects.
*
* While <tt>RCP</tt> provides for specialized deallocation
* policies it does not abstract, in any way, how an object is first
* allocated. The most general way to abstract how an object is
* allocated is to use an "Abstract Factory". This base class defines
* the most basic "Abstract Factory" interface and defines only one
* virtual function, <tt>create()</tt> that returns a
* <tt>RCP</tt>-wrapped object.
*/
template<class T>
class AbstractFactory {
public:
#ifndef DOXYGEN_COMPILE
/** \brief . */
typedef Teuchos::RCP<T> obj_ptr_t;
#endif
/** \brief . */
virtual ~AbstractFactory() {}
/** \brief Create an object of type T returned as a smart reference
* counting pointer object.
*/
virtual obj_ptr_t create() const = 0;
}; // class AbstractFactory
} // end Teuchos
#endif // TEUCHOS_ABSTRACT_FACTORY_HPP
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