69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
// @HEADER
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// ***********************************************************************
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//
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// Teuchos: Common Tools Package
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// Copyright (2004) Sandia Corporation
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//
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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// license for use of this work by or on behalf of the U.S. Government.
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
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//
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// ***********************************************************************
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// @HEADER
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#ifndef TEUCHOS_ABSTRACT_FACTORY_HPP
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#define TEUCHOS_ABSTRACT_FACTORY_HPP
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#include "Teuchos_RCP.hpp"
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namespace Teuchos {
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/** \brief Simple, universal "Abstract Factory" interface for the
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* dynamic creation of objects.
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*
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* While <tt>RCP</tt> provides for specialized deallocation
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* policies it does not abstract, in any way, how an object is first
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* allocated. The most general way to abstract how an object is
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* allocated is to use an "Abstract Factory". This base class defines
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* the most basic "Abstract Factory" interface and defines only one
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* virtual function, <tt>create()</tt> that returns a
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* <tt>RCP</tt>-wrapped object.
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*/
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template<class T>
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class AbstractFactory {
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public:
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#ifndef DOXYGEN_COMPILE
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/** \brief . */
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typedef Teuchos::RCP<T> obj_ptr_t;
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#endif
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/** \brief . */
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virtual ~AbstractFactory() {}
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/** \brief Create an object of type T returned as a smart reference
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* counting pointer object.
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*/
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virtual obj_ptr_t create() const = 0;
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}; // class AbstractFactory
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} // end Teuchos
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#endif // TEUCHOS_ABSTRACT_FACTORY_HPP
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