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// NOX: An Object-Oriented Nonlinear Solver Package
// Copyright (2002) Sandia Corporation
//
// LOCA: Library of Continuation Algorithms Package
// Copyright (2005) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
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//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
//
// Questions? Contact Roger Pawlowski (rppawlo@sandia.gov) or
// Eric Phipps (etphipp@sandia.gov), Sandia National Laboratories.
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#ifndef NOX_SHARED_OBJECT_TEMPLATE_H
#define NOX_SHARED_OBJECT_TEMPLATE_H
#include "NOX_Common.H"
#include "Teuchos_RCP.hpp"
namespace NOX {
/*! \brief Holder for objects that are shared between NOX::Abstract::Groups.
*
* Due to the size of certain operators (i.e. the Jacobian and
* Preconditioning Matrices), we cannot afford to have
* multiple copies. Instead we implement a shared object class that
* that all groups use.
*/
template <class Object, class Owner>
class SharedObject {
public:
//! Constructor
SharedObject(const Teuchos::RCP<Object>& newObject) :
object(newObject), owner(NULL) {};
//! Destructor
~SharedObject(){};
//! Get a non-const reference to the underlying object
Teuchos::RCP<Object>
getObject(const Owner* newOwner)
{
owner = newOwner;
return object;
};
//! Return a const reference to the underlying object
Teuchos::RCP<const Object> getObject() const
{ return object;};
//! Return true if testOwner is the owner of the Jacobian
bool isOwner(const Owner* checkOwner) const
{return (owner == checkOwner);};
protected:
//! Pointer to the shared object.
Teuchos::RCP<Object> object;
//! Pointer to const object that owns the shared object.
const Owner* owner;
};
} // namespace NOX
#endif
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